PageSourceSearch

https://542.digital/case-studies/opening-black-box

html 542.digital collected 2026-10-07 16:36:47 UTC 73,047 bytes, 1 lines download raw bytes

1<!DOCTYPE html><html><head><meta charSet="utf-8" data-next-head=""/><meta name="viewport" content="width=device-width, initial-scale=1" data-next-head=""/><link rel="canonical" href="https://542.digital/case-studies/opening-black-box" data-next-head=""/><title data-next-head="">Opening up the Black Box | 542 Digital</title><meta name="description" content="Bespoke digital development, for when nothing else fits." data-next-head=""/><link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" data-next-head=""/><link rel="icon" type="image/svg+xml" href="/favicon.svg" data-next-head=""/><link rel="shortcut icon" href="/favicon.ico" data-next-head=""/><link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" data-next-head=""/><meta name="apple-mobile-web-app-title" content="542.digital" data-next-head=""/><link rel="manifest" href="/site.webmanifest" data-next-head=""/><link rel="preload" href="/_next/static/css/9cc44c2d4cde392e.css" as="style"/><link rel="preload" href="/_next/static/css/182c4c7108f4b506.css" as="style"/><link rel="preload" href="/_next/static/css/acdcb91d70cd9a4d.css" as="style"/><link rel="preload" href="/_next/static/css/cc5b83e28e88c270.css" as="style"/><link rel="preload" href="/_next/static/css/232466d78d895ec2.css" as="style"/>
1<script type="application/ld+json" data-next-head="">{"@id":"https://542.digital/case-studies/opening-black-box","url":"https://542.digital/case-studies/opening-black-box","@type":"Article","about":[{"name":"Legacy System Modernisation","@type":"Service","description":"Replaced end-of-life legacy application code with a fully restructured codebase, adding data validation, audit logs, and scalable storage to support regulatory transparency requirements.","serviceType":"Application Re-architecture"},{"name":"API Development","@type":"Service","description":"Rebuilt the API from the ground up to connect the reconfigured dataset to analytical and visualisation tools, optimising both infrastructure and interface for increased data capacity.","serviceType":"API Restructuring & Optimisation"},{"name":"Data Validation & Audit","@type":"Service","description":"Developed an automated data validation toolkit that checks at key points during ingestion and calculation, surfacing anomalies and reducing reliance on developers to manage data issues.","serviceType":"Data Quality Toolkit"},{"name":"Data Visualisation","@type":"Service","description":"Designed and delivered user-friendly data visualisations and a branded chart interface to replace legacy table-based outputs for use in the client's published research reports.","serviceType":"Analytical Dashboard & Reporting"}],"@context":"https://schema.org","headline":"Opening up the Black Box","keywords":"Legacy System Modernisation, API Development, Data Validation, Data Visualisation, Data Warehouse, Audit Trail, Regulatory Compliance, Financial Research, Trading Volumes, Agile, Dashboard, Data Reconciliation, Financial Services","publisher":{"url":"https://542.digital","logo":{"url":"https://542.digital/logo.png","@type":"ImageObject"}
1,"name":"542 Digital","@type":"Organization","email":"[email protected]","sameAs":["https://www.linkedin.com/company/542-digital/","https://x.com/542digital","https://bsky.app/profile/542digital.bsky.social"],"address":{"@type":"PostalAddress","postalCode":"SE11 5JH","streetAddress":"Unit 306, VOX Studios, 1-45 Durham Street","addressCountry":"GB","addressLocality":"London"}},"inLanguage":"en-GB","articleBody":"Nearly a decade ago, a client asked us to build a data management system to process multiple datasets acquired via automated and manual feeds from third-party sources. The system was for internal-use-only and the processing was designed around a black box of analytical requirements based upon the client's proprietary methodologies. In time, as regulatory obligations around transparency and auditing grew more stringent, it became apparent that the black box methodologies would need to be revised; not least because incoming third-party data was now changed, having been processed and reconciled according to new methods.","description":"Overhaul of a decade-old proprietary data management system for a financial research client, replacing legacy black-box calculations with a transparent, auditable cloud architecture, restructured API, and branded data visualisation tools."}</script>
1<link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2FBlackbox-2.jpg%3FVersionId%3DzKno9DqFOZLwrqQD4yTsHCSNY9hdYdP8&amp;w=3840&amp;q=75 1x" data-next-head=""/><link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=1920&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=3840&amp;q=75 2x" data-next-head=""/><link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=1080&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=2048&amp;q=75 2x" data-next-head=""/><link rel="stylesheet" href="/_next/static/css/9cc44c2d4cde392e.css" data-n-g=""/><link rel="stylesheet" href="/_next/static/css/182c4c7108f4b506.css" data-n-p=""/><link rel="stylesheet" href="/_next/static/css/acdcb91d70cd9a4d.css" data-n-p=""/><link rel="stylesheet" href="/_next/static/css/cc5b83e28e88c270.css"/><link rel="stylesheet" href="/_next/static/css/232466d78d895ec2.css"/><noscript data-n-css=""></noscript>
1<script defer="" noModule="" src="/_next/static/chunks/polyfills-42372ed130431b0a.js"></script>
1<script src="https://cdn-cookieyes.com/client_data/86146ed52b412371a570302e/script.js" defer="" data-nscript="beforeInteractive"></script>
1<script src="https://scripts.simpleanalyticscdn.com/latest.js" data-collect-dnt="true" defer="" data-nscript="beforeInteractive"></script>
1<script defer="" src="/_next/static/chunks/562.d079b12fe2129b7e.js"></script>
1<script defer="" src="/_next/static/chunks/3443.e998f94504976668.js"></script>
1<script defer="" src="/_next/static/chunks/5289.e64f1bee975b9978.js"></script>
1<script defer="" src="/_next/static/chunks/1007.3f83ac20377f2540.js"></script>
1<script defer="" src="/_next/static/chunks/6917.9c45575d4e131ab2.js"></script>
1<script defer="" src="/_next/static/chunks/615.2d898230b1811db4.js"></script>
1<script defer="" src="/_next/static/chunks/6950.856391addb7e260f.js"></script>
1<script defer="" src="/_next/static/chunks/2909.d8071d3d8e44ca2e.js"></script>
1<script defer="" src="/_next/static/chunks/1567.b8bb202ed57c8109.js"></script>
1<script defer="" src="/_next/static/chunks/7657.17b023dc6d890968.js"></script>
1<script defer="" src="/_next/static/chunks/1610.653dcd38299d2500.js"></script>
1<script defer="" src="/_next/static/chunks/8193.0eb2ddd5322843cc.js"></script>
1<script src="/_next/static/chunks/webpack-4abb20daeca0975a.js" defer=""></script>
1<script src="/_next/static/chunks/framework-41a38143d9d28346.js" defer=""></script>
1<script src="/_next/static/chunks/main-20578f76f96b96f8.js" defer=""></script>
1<script src="/_next/static/chunks/pages/_app-fa73ee4e5cf1f9d2.js" defer=""></script>
1<script src="/_next/static/chunks/50d3ae47-b36b213e470c7402.js" defer=""></script>
1<script src="/_next/static/chunks/479-17bdaa6d24ba5fd1.js" defer=""></script>
1<script src="/_next/static/chunks/826-272b067b9d90178f.js" defer=""></script>
1<script src="/_next/static/chunks/pages/%5B...slug%5D-7dc743464057fd52.js" defer=""></script>
1<script src="/_next/static/Glr0NwRar8CuFuU80Pxgq/_buildManifest.js" defer=""></script>
1<script src="/_next/static/Glr0NwRar8CuFuU80Pxgq/_ssgManifest.js" defer=""></script>
1</head><body><link rel="preload" as="image" href="https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/Blackbox-1.jpg?VersionId=tFPld4rDqd240najKpP2z0u5uvPYAgE_"/><link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2FBlackbox-2.jpg%3FVersionId%3DzKno9DqFOZLwrqQD4yTsHCSNY9hdYdP8&amp;w=3840&amp;q=75 1x"/><link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=1920&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=3840&amp;q=75 2x"/><link rel="preload" as="image" imageSrcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=1080&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=2048&amp;q=75 2x"/><div id="__next"><div class="surface surface--light"><header class="Header_header__QZs1J"><div class="l-container"><div class="l-grid"><div class="Header_headerInner__1wlpX"><a class="Header_logo__IdPZ5" title="542 Digital Home" href="/"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 118 59"><g fill="currentColor" clip-path="url(#logo_svg__a)"><path d="M59 59H0V0h59zM2.458 50.563c.315 4.936 3.776 6.608 8.28 6.608s8.398-2.517 8.398-7.572-2.675-6.667-6.864-6.667-2.97.433-3.992 1.475h-.06l.768-3.717h9.066v-4.228H5.133L3.147 48.026H7.67c.787-1.259 1.849-1.554 3.265-1.554 2.084 0 3.225 1.377 3.225 3.383s-1.436 3.284-3.402 3.284-3.285-.944-3.285-2.556H2.458zm32.667-2.439V36.442h-4.78l-9.144 11.23v4.661h8.948v4.543h4.995v-4.543h2.675v-4.228h-2.675zm-10.05 0 5.153-6.608h.059v6.608zm31.014 8.772v-4.229h-9.715c1.357-1.298 2.104-1.809 3.697-2.753 2.99-1.868 5.802-3.284 5.802-7.237s-3.599-6.49-7.65-6.49-8.359 3.422-8.044 8.496h4.661c0-2.223.767-4.13 3.402-4.13s2.636.944 2.636 2.556-1.121 2.38-2.675 3.403c-1.613 1.022-3.58 2.045-5.33 3.579-2.025 1.75-3.166 4.189-3.205 6.805H56.09M61.34 54.418h2.478v2.477H61.34zM65.53 47.397h4.09c2.91 0 4.661 1.77 4.661 4.7s-1.77 4.779-4.661 4.779h-4.09v-9.499zm2.477 7.375h1.16c1.869-.04 2.616-.767 2.616-2.675s-.924-2.557-2.615-2.557h-1.16zM75.618 47.397h2.478v9.499h-2.478zM88.579 56.896h-1.593l-.138-1.043c-.63.925-1.79 1.24-2.655 1.24-2.891 0-4.74-2.203-4.74-4.937 0-2.733 1.849-4.956 4.74-4.956s4.09 1.042 4.287 3.422h-2.478c-.098-.806-.865-1.298-1.868-1.298-1.593 0-2.203 1.397-2.203 2.813s.61 2.812 2.203 2.812 2.025-.57 2.183-1.436h-1.73v-1.829h3.992v5.212M90.152 47.397h2.478v9.499h-2.478zM101.873 49.52h-2.832v7.375h-2.478V49.52h-2.832v-2.123h8.142zM104.312 47.397h2.518l3.559 9.499h-2.576l-.59-1.712h-3.304l-.59 1.712h-2.537l3.56-9.5zm.158 5.959h2.163l-1.042-3.324h-.02l-1.082 3.324zM111.097 47.397h2.478v7.375H118v2.124h-6.903z"></path></g><defs><clipPath id="logo_svg__a"><path fill="curentColor" d="M0 0h118v59H0z"></path></clipPath></defs></svg></a><div class="Header_headerNavigationBlock___V8YQ"><div class="Menu_menu__rniQ0"><a href="/#what-we-do" class="Menu_menuLink___WK03">About</a><a href="/#case-studies" class="Menu_menuLink___WK03">Case Studies</a><a href="/#our-team" class="Menu_menuLink___WK03">Our Team</a><a href="/#careers" class="Menu_menuLink___WK03">Careers</a></div><aside><button type="button" class="Button_button__lIc5U  Button_button--secondary__DgYIc Button_button--small__SBxOp Button_button--icon__em8Mn">Contact us<!-- --> <span><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 20 20"><path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M18.125 5.625v8.75c0 1.036-.84 1.875-1.875 1.875H3.75a1.875 1.875 0 0 1-1.875-1.875v-8.75m16.25 0c0-1.036-.84-1.875-1.875-1.875H3.75c-1.036 0-1.875.84-1.875 1.875m16.25 0v.202c0 .651-.338 1.256-.892 1.597l-6.25 3.846c-.603.371-1.363.371-1.966 0l-6.25-3.846a1.88 1.88 0 0 1-.892-1.597v-.202"></path></svg></span></button><div class="SocialsMenu_socialsMenu__9wg9v"><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="Blue Sky" href="https://bsky.app/profile/542digital.bsky.social"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none">
1<path fill="currentColor" d="M4.335 2.428c2.293 1.71 4.76 5.18 5.665 7.04.906-1.86 3.372-5.33 5.665-7.04C17.319 1.194 20 .238 20 3.278c0 .607-.35 5.098-.556 5.828-.713 2.535-3.315 3.182-5.629 2.79 4.045.684 5.074 2.95 2.852 5.216-4.22 4.304-6.066-1.08-6.54-2.459-.086-.253-.126-.371-.127-.27 0-.101-.041.017-.128.27-.473 1.38-2.318 6.763-6.539 2.46-2.222-2.267-1.193-4.533 2.852-5.217-2.314.391-4.916-.255-5.63-2.79C.35 8.376 0 3.885 0 3.278c0-3.04 2.68-2.084 4.335-.85"></path></svg></a><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="LinkedIn" href="https://www.linkedin.com/company/542-digital/"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><g clip-path="url(#linkedin_svg__a)"><path fill="currentColor" d="M18.52 0H1.477C.66 0 0 .645 0 1.441v17.114C0 19.352.66 20 1.477 20H18.52c.816 0 1.48-.648 1.48-1.441V1.44C20 .645 19.336 0 18.52 0M5.934 17.043h-2.97V7.496h2.97zM4.449 6.195a1.72 1.72 0 1 1-.006-3.439 1.72 1.72 0 0 1 .006 3.44m12.594 10.848h-2.965v-4.64c0-1.106-.02-2.532-1.543-2.532-1.543 0-1.777 1.207-1.777 2.453v4.719H7.797V7.496h2.844v1.305h.039c.394-.75 1.363-1.543 2.804-1.543 3.004 0 3.559 1.976 3.559 4.547z"></path></g><defs><clipPath id="linkedin_svg__a"><path fill="#fff" d="M0 0h20v20H0z"></path></clipPath></defs></svg></a><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="X" href="https://x.com/542digital"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><path fill="currentColor" d="M15.272 1.587h2.81l-6.14 7.02 7.224 9.551H13.51l-4.431-5.793-5.07 5.793H1.195l6.57-7.508L.832 1.587h5.8l4.006 5.295zm-.987 14.889h1.558L5.788 3.18H4.116z"></path></svg></a></div></aside></div><div class="BurgerMenu_burgerMenuWrapper__jcj3l"><button class="BurgerMenu_burgerMenu__GowPE false" aria-expanded="false" aria-label="Toggle menu" title="Hamburger menu"><span> </span></button></div></div></div></div></header><main><section class="Section_section__ku3ul surface surface--light"><div class="Section_sectionWrapper__rbRzr"><div class="l-container l-container--bleed"><div class="l-grid Section_sectionOuter__pItNH"><div class="l-col-12 l-col-bleed Section_sectionInner__EbV6w"><article><hr class="Spacer_spacer__Yl5FF Spacer_spacer--block_md__M8KC3"/><div class="l-grid l-justify-space-between"><div class="l-col-12"><div class="l-col-sm-9 l-col-bleed"><h1 class="Title_title__iSDZ1 Title_title--displayxl__NTZ_P Title_title--hasSlash__Ew_fO ">Opening up the Black Box</h1></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--block_md__M8KC3"/><figure><img src="https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/Blackbox-1.jpg?VersionId=tFPld4rDqd240najKpP2z0u5uvPYAgE_" class="FeaturedImage_featuredImage__PdEIh" loading="eager" alt="Opening up the Black Box"/></figure><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/></div><div class="l-col-sm-3"><div class="SidebarDetail_sidebarDetail__DTTKJ SidebarDetail_first__DLtwi"><h3 class="b-s SidebarDetail_label__hihRi">Case Study</h3><p class="bold">Trading Volumes</p></div></div><div class="l-col-sm-8"><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>Nearly a decade ago, a client asked us to build a data management system to process multiple datasets acquired via automated and manual feeds from third-party sources. The system was for internal-use-only and the processing was designed around a “black box” of analytical requirements based upon the client’s proprietary methodologies.</p><p>In time, as regulatory obligations around transparency and auditing grew more stringent, it became apparent that the “black box” methodologies would need to be revised; not least because incoming third-party data was now changed, having been processed and reconciled according to new methods.</p><p>The internal-use system had provided the client’s research team with powerful analytical capabilities for many years but its outputs were presented in a legacy ‘table’ format mirroring their XLSX files. They now wished to develop more user-friendly data visualisations and a branded interface for charts to use in their published reports.</p><p>It was time for an overhaul, and the client asked 542 to lead the way.</p></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><figure><img alt="Anchors on the beach" width="3024" height="1701" decoding="async" data-nimg="1" style="color:transparent" srcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2FBlackbox-2.jpg%3FVersionId%3DzKno9DqFOZLwrqQD4yTsHCSNY9hdYdP8&amp;w=3840&amp;q=75 1x" src="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2FBlackbox-2.jpg%3FVersionId%3DzKno9DqFOZLwrqQD4yTsHCSNY9hdYdP8&amp;w=3840&amp;q=75"/></figure><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>
1The legacy code was approaching end-of-life in terms of functionality, and a comprehensive reworking of the existing architecture was in order:</p><ul><li>New code to replace the legacy application</li><li>Additional tables and data storage areas to support and enhance extensibility</li><li>A complete restructuring of the API</li><li>A new data validation toolkit</li><li>Integration and platform unification</li></ul><p>This aligned with the client’s progress towards a data warehouse structure for all of its data, updating and integrating the old datasets into a new tool for analysis and reporting.</p></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><figure><img alt="A boat in the harbour at sunset" width="1491" height="839" decoding="async" data-nimg="1" style="color:transparent" srcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=1920&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=3840&amp;q=75 2x" src="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fimage4.jpg%3FVersionId%3DAh6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5&amp;w=3840&amp;q=75"/></figure><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>We are adept at multi-disciplinary projects like these; our Data, Development and Design teams collaborated closely and a project plan was soon in place. Weekly check-ins meant that all stakeholders were kept abreast of the project’s progress whilst, internally, our Agile processes ensured that working priorities remained aligned with the client’s needs. Our mission was to transform an end-of-life product into a dynamic solution designed to accommodate constantly evolving analytical needs.</p><p><strong>New code to replace the legacy application</strong></p><p>The “black box” calculations would have to be dismantled. While there were many core functionalities that could be retained, several new stages were required to provide transparency to the processes of data ingestion, reconciliation, and publication. It was no longer appropriate for this to be a standalone application with siloed data and methodologies.</p><p>In consultation with the client’s SMEs, 542’s analysts and developers re-developed the codebase to include data validation and audit logs, reducing the system’s reliance on developers to identify and mitigate data issues. While this increased the complexity of the system, it maximised transparency for the client and helped meet regulatory obligations.</p><p><strong>Additional tables and data storage areas to support and enhance extensibility</strong></p><p>As the feeds, calculations, and reporting structures were being reworked, we were able to improve the storage and analytical capability of the system. In restructuring the data flow, we made it highly scalable and accessible. Designed for integration with the client’s wider data library it enabled unified indexing, standardised lookups, and more efficient data maintenance.</p><p>The creation of new outputs displaying more granular data, (geographical locations and flexible periodicities), as well as the addition of comparison tables (to show data before and after it had been transformed) greatly expanded the analytical potential of what had been a siloed black box.</p><p><strong>A complete restructuring of the API</strong></p><p>To support the increased capacity of the dataset, and its integration into the data library and our analytical dashboard, the API had to be rebuilt. We optimised both the infrastructure and interface to connect the newly-configured dataset to a suite of analytical and visualisation tools.</p><p><strong>A new data validation toolkit</strong></p><p>The original version of the app did not allow users to interrogate the proprietary calculations - data went into the black box, something happened, and it came out transformed. It was a fixed, isolated system with only a single stakeholder capable of validating the data. We saw the need to build a data validation toolkit that would automatically check in at key points in the ingestion and calculation process and identify any anomalies.</p><p><strong>Integration and platform unification</strong></p><p>Having worked with the application, unchanged, for the best part of a decade, our client saw the opportunity for a comprehensive update to meet their evolving business objectives. As the project progressed new opportunities became apparent. The potential of the new system gave rise to many requests for additional features and functionalities that extended the scope of both this application and the wider database. Our Agile processes allowed us to keep pace with our client’s initiatives, adapting priorities and new features on a rolling basis while maintaining a tight grasp on deliverables, timeline, and cost.</p></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><figure><img alt="Person jumping around like fool on a beach." width="1000" height="563" decoding="async" data-nimg="1" style="color:transparent" srcSet="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=1080&amp;q=75 1x, /_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=2048&amp;q=75 2x" src="/_next/image?url=https%3A%2F%2Fwebsite-filesystem.542.cloud%2Fwebsite-2025%2Fs3fs-public%2F2026-01%2Fhot-dog-juming-frog.jpg%3FVersionId%3DXhoqrsEyiTD7gwnMRJocbMbW3CIMnzol&amp;w=2048&amp;q=75"/></figure><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>No matter how carefully you plan, sometimes a client’s needs change during discovery and even into development. In this case, as soon as we started delivering test environments, our client identified new possibilities and opportunities and we were asked to extend the project scope.</p><p>
1This type of scenario at any stage can present problems but we have found that transparency and openness to continuous adaptation pays dividends.</p><p>Allowing the client to customise the software over and above the initial requirements results in an extensible solution that not only reflects their changing needs but also saves them time and money.</p></div></div></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--block_md__M8KC3"/></article></div></div></div></div></section></main><footer class="surface surface--dark"><div class="Footer_footerMiddle__Y1dao"><div class="l-container"><div class="l-grid"><div class="l-col-12 l-col-bleed"><hr class="Spacer_spacer__Yl5FF Spacer_spacer--block_lg__wgleb"/><div class="Grid_grid__Ze47W Grid_grid--2__ne7k3 Grid_grid--center__FadtO"><div><h3 class="Title_title__iSDZ1 Title_title--displayxl__NTZ_P  ">Let&#x27;s create something great together</h3><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>We help businesses harness data to drive smarter decisions, enhance experiences, and fuel growth. Let’s turn your vision into reality.</p></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--article_md__TNSP3"/><button type="button" class="Button_button__lIc5U    Button_button--icon__em8Mn">Contact us<!-- --> <span><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 20 20"><path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M18.125 5.625v8.75c0 1.036-.84 1.875-1.875 1.875H3.75a1.875 1.875 0 0 1-1.875-1.875v-8.75m16.25 0c0-1.036-.84-1.875-1.875-1.875H3.75c-1.036 0-1.875.84-1.875 1.875m16.25 0v.202c0 .651-.338 1.256-.892 1.597l-6.25 3.846c-.603.371-1.363.371-1.966 0l-6.25-3.846a1.88 1.88 0 0 1-.892-1.597v-.202"></path></svg></span></button></div><div class="FooterContact_footerContact__n6nNd"><div class="FooterContact_map__XzKf4"><div class="Map_map__P2DJ1"></div></div><div class="FooterContact_contactInfo__xGYUY"><div class="FooterContactItem_footerContactItem__q10tt"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 18 21"><path fill="currentColor" fill-rule="evenodd" d="m8.628 20.863.003.001c.237.103.369.079.369.079s.132.024.37-.08h.002l.006-.004.022-.01a8 8 0 0 0 .338-.167c.223-.116.535-.289.908-.52a16.5 16.5 0 0 0 2.728-2.118c1.988-1.916 4.026-4.91 4.026-9.101a8.4 8.4 0 1 0-16.8 0c0 4.19 2.037 7.185 4.025 9.101a16.5 16.5 0 0 0 2.729 2.118 14 14 0 0 0 1.17.652l.075.035.022.01zM9 11.643a2.7 2.7 0 1 0 0-5.4 2.7 2.7 0 0 0 0 5.4" clip-rule="evenodd"></path></svg><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p><a href="https://maps.app.goo.gl/Kr95FkaDqCCPX64M9"><strong>542 Digital - London HQ
</strong></a><br>Unit 306, VOX Studios<br>1-45 Durham Street<br>London SE11 5JH</p></div></div><div class="FooterContactItem_footerContactItem__q10tt"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 22 19"><path fill="currentColor" fill-rule="evenodd" d="M1.527 4.88A2.4 2.4 0 0 0 .2 7.026v9.317a2.4 2.4 0 0 0 2.4 2.4h16.8a2.4 2.4 0 0 0 2.4-2.4V7.026a2.4 2.4 0 0 0-1.326-2.146l-8.4-4.2a2.4 2.4 0 0 0-2.147 0zm1.776 4.808a.9.9 0 0 0-.805 1.61l7.026 3.513a3.3 3.3 0 0 0 2.952 0l7.023-3.511a.9.9 0 1 0-.805-1.61L11.671 13.2a1.5 1.5 0 0 1-1.342 0z" clip-rule="evenodd"></path></svg><a title="Email [email protected]" class="FooterContact_email__H_d0i" href="mailto:[email protected]">[email protected]</a></div><div class="FooterContactItem_footerContactItem__q10tt"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 20 20"><path fill="currentColor" fill-rule="evenodd" d="M10 19.743a9.6 9.6 0 1 0 0-19.2 9.6 9.6 0 0 0 0 19.2m.75-15.6a.75.75 0 0 0-1.5 0v6c0 .414.336.75.75.75h4.8a.75.75 0 0 0 0-1.5h-4.05z" clip-rule="evenodd"></path></svg><div class="CkeditorText_font__LFyu6 CkeditorText_font--md__kPvzO"><p>Regular trading hours Monday - Friday<br>Closed evenings, weekends &amp; UK bank holidays</p></div></div></div></div></div><hr class="Spacer_spacer__Yl5FF Spacer_spacer--block_lg__wgleb"/></div></div></div></div><div class="l-container"><div class="l-grid"><div class="Footer_footerStrip__kVXeS Footer_footerBottom__Lb77l"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 118 59"><g fill="currentColor" clip-path="url(#logo_svg__a)"><path d="M59 59H0V0h59zM2.458 50.563c.315 4.936 3.776 6.608 8.28 6.608s8.398-2.517 8.398-7.572-2.675-6.667-6.864-6.66
17-2.97.433-3.992 1.475h-.06l.768-3.717h9.066v-4.228H5.133L3.147 48.026H7.67c.787-1.259 1.849-1.554 3.265-1.554 2.084 0 3.225 1.377 3.225 3.383s-1.436 3.284-3.402 3.284-3.285-.944-3.285-2.556H2.458zm32.667-2.439V36.442h-4.78l-9.144 11.23v4.661h8.948v4.543h4.995v-4.543h2.675v-4.228h-2.675zm-10.05 0 5.153-6.608h.059v6.608zm31.014 8.772v-4.229h-9.715c1.357-1.298 2.104-1.809 3.697-2.753 2.99-1.868 5.802-3.284 5.802-7.237s-3.599-6.49-7.65-6.49-8.359 3.422-8.044 8.496h4.661c0-2.223.767-4.13 3.402-4.13s2.636.944 2.636 2.556-1.121 2.38-2.675 3.403c-1.613 1.022-3.58 2.045-5.33 3.579-2.025 1.75-3.166 4.189-3.205 6.805H56.09M61.34 54.418h2.478v2.477H61.34zM65.53 47.397h4.09c2.91 0 4.661 1.77 4.661 4.7s-1.77 4.779-4.661 4.779h-4.09v-9.499zm2.477 7.375h1.16c1.869-.04 2.616-.767 2.616-2.675s-.924-2.557-2.615-2.557h-1.16zM75.618 47.397h2.478v9.499h-2.478zM88.579 56.896h-1.593l-.138-1.043c-.63.925-1.79 1.24-2.655 1.24-2.891 0-4.74-2.203-4.74-4.937 0-2.733 1.849-4.956 4.74-4.956s4.09 1.042 4.287 3.422h-2.478c-.098-.806-.865-1.298-1.868-1.298-1.593 0-2.203 1.397-2.203 2.813s.61 2.812 2.203 2.812 2.025-.57 2.183-1.436h-1.73v-1.829h3.992v5.212M90.152 47.397h2.478v9.499h-2.478zM101.873 49.52h-2.832v7.375h-2.478V49.52h-2.832v-2.123h8.142zM104.312 47.397h2.518l3.559 9.499h-2.576l-.59-1.712h-3.304l-.59 1.712h-2.537l3.56-9.5zm.158 5.959h2.163l-1.042-3.324h-.02l-1.082 3.324zM111.097 47.397h2.478v7.375H118v2.124h-6.903z"></path></g><defs><clipPath id="logo_svg__a"><path fill="curentColor" d="M0 0h118v59H0z"></path></clipPath></defs></svg><div><div class="Footer_footerLinks__arM_M"><a href="/terms-and-conditions">Terms and Conditions</a><a href="/cookie-policy">Cookie policy</a><a href="/privacy-notice">Privacy Policy</a></div><div class="Footer_smallprint__hWjqX"><div class="CkeditorText_font__LFyu6 CkeditorText_font--xs__KYp09"><p>&copy; 2026 542 Digital Limited. All rights reserved.</p><p>542 Digital is a registered company in the UK with company number 09682228.</p></div></div></div><a href="https://registry.blockmarktech.com/organisations/GBLTD09682228/" target="_blank" rel="noopener noreferrer"></a><div class="SocialsMenu_socialsMenu__9wg9v"><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="Blue Sky" href="https://bsky.app/profile/542digital.bsky.social"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><path fill="currentColor" d="M4.335 2.428c2.293 1.71 4.76 5.18 5.665 7.04.906-1.86 3.372-5.33 5.665-7.04C17.319 1.194 20 .238 20 3.278c0 .607-.35 5.098-.556 5.828-.713 2.535-3.315 3.182-5.629 2.79 4.045.684 5.074 2.95 2.852 5.216-4.22 4.304-6.066-1.08-6.54-2.459-.086-.253-.126-.371-.127-.27 0-.101-.041.017-.128.27-.473 1.38-2.318 6.763-6.539 2.46-2.222-2.267-1.193-4.533 2.852-5.217-2.314.391-4.916-.255-5.63-2.79C.35 8.376 0 3.885 0 3.278c0-3.04 2.68-2.084 4.335-.85"></path></svg></a><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="LinkedIn" href="https://www.linkedin.com/company/542-digital/"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><g clip-path="url(#linkedin_svg__a)"><path fill="currentColor" d="M18.52 0H1.477C.66 0 0 .645 0 1.441v17.114C0 19.352.66 20 1.477 20H18.52c.816 0 1.48-.648 1.48-1.441V1.44C20 .645 19.336 0 18.52 0M5.934 17.043h-2.97V7.496h2.97zM4.449 6.195a1.72 1.72 0 1 1-.006-3.439 1.72 1.72 0 0 1 .006 3.44m12.594 10.848h-2.965v-4.64c0-1.106-.02-2.532-1.543-2.532-1.543 0-1.777 1.207-1.777 2.453v4.719H7.797V7.496h2.844v1.305h.039c.394-.75 1.363-1.543 2.804-1.543 3.004 0 3.559 1.976 3.559 4.547z"></path></g><defs><clipPath id="linkedin_svg__a"><path fill="#fff" d="M0 0h20v20H0z"></path></clipPath></defs></svg></a><a class="SocialMenuLink_socialMenuLink__BEqjI" target="_blank" rel="noreferrer" aria-label="X" href="https://x.com/542digital"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><path fill="currentColor" d="M15.272 1.587h2.81l-6.14 7.02 7.224 9.551H13.51l-4.431-5.793-5.07 5.793H1.195l6.57-7.508L.832 1.587h5.8l4.006 5.295zm-.987 14.889h1.558L5.788 3.18H4.116z"></path></svg></a></div></div></div></div></footer></div></div>
1<script id="__NEXT_DATA__" type="application/json">{"props":{"pageProps":{"node":{"type":"node--case_study","id":"9d225710-155a-48f2-9488-d98da8169284","drupal_internal__nid":12,"drupal_internal__vid":290,"langcode":"en","revision_timestamp":"2026-05-15T09:22:03+00:00","status":true,"title":"Opening up the Black Box","created":"2025-03-05T16:27:14+00:00","changed":"2026-05-15T09:22:03+00:00","promote":false,"sticky":false,"default_langcode":true,"revision_translation_affected":true,"metatag":[],"path":{"alias":"/case-studies/opening-black-box","pid":22,"langcode":"en"},"field_json_structured_data":"{\"@id\": \"https://542.digital/case-studies/opening-black-box\", \"url\": \"https://542.digital/case-studies/opening-black-box\", \"@type\": \"Article\", \"about\": [{\"name\": \"Legacy System Modernisation\", \"@type\": \"Service\", \"description\": \"Replaced end-of-life legacy application code with a fully restructured codebase, adding data validation, audit logs, and scalable storage to support regulatory transparency requirements.\", \"serviceType\": \"Application Re-architecture\"}, {\"name\": \"API Development\", \"@type\": \"Service\", \"description\": \"Rebuilt the API from the ground up to connect the reconfigured dataset to analytical and visualisation tools, optimising both infrastructure and interface for increased data capacity.\", \"serviceType\": \"API Restructuring \u0026 Optimisation\"}, {\"name\": \"Data Validation \u0026 Audit\", \"@type\": \"Service\", \"description\": \"Developed an automated data validation toolkit that checks at key points during ingestion and calculation, surfacing anomalies and reducing reliance on developers to manage data issues.\", \"serviceType\": \"Data Quality Toolkit\"}, {\"name\": \"Data Visualisation\", \"@type\": \"Service\", \"description\": \"Designed and delivered user-friendly data visualisations and a branded chart interface to replace legacy table-based outputs for use in the client's published research reports.\", \"serviceType\": \"Analytical Dashboard \u0026 Reporting\"}], \"@context\": \"https://schema.org\", \"headline\": \"Opening up the Black Box\", \"keywords\": \"Legacy System Modernisation, API Development, Data Validation, Data Visualisation, Data Warehouse, Audit Trail, Regulatory Compliance, Financial Research, Trading Volumes, Agile, Dashboard, Data Reconciliation, Financial Services\", \"publisher\": {\"url\": \"https://542.digital\", \"logo\": {\"url\": \"https://542.digital/logo.png\", \"@type\": \"ImageObject\"}, \"name\": \"542 Digital\", \"@type\": \"Organization\", \"email\": \"[email protected]\", \"sameAs\": [\"https://www.linkedin.com/company/542-digital/\", \"https://x.com/542digital\", \"https://bsky.app/profile/542digital.bsky.social\"], \"address\": {\"@type\": \"PostalAddress\", \"postalCode\": \"SE11 5JH\", \"streetAddress\": \"Unit 306, VOX Studios, 1-45 Durham Street\", \"addressCountry\": \"GB\", \"addressLocality\": \"London\"}}, \"inLanguage\": \"en-GB\", \"articleBody\": \"Nearly a decade ago, a client asked us to build a data management system to process multiple datasets acquired via automated and manual feeds from third-party sources. The system was for internal-use-only and the processing was designed around a black box of analytical requirements based upon the client's proprietary methodologies. In time, as regulatory obligations around transparency and auditing grew more stringent, it became apparent that the black box methodologies would need to be revised; not least because incoming third-party data was now changed, having been processed and reconciled according to new methods.\", \"description\": \"Overhaul of a decade-old proprietary data management system for a financial research client, replacing legacy black-box calculations with a transparent, auditable cloud architecture, restructured API, and branded data visualisation tools.\"}","field_metatags":null,"field_teaser_copy":"542 Digital helped a client overhaul their outdated, “black box” data management system by developing a new, transparent architecture that supported enhanced data validation, extensibility, and integration.","node_type":{"type":"node_type--node_type","id":"125
17706a-5ed6-40f3-b5df-e12800618078","resourceIdObjMeta":{"drupal_internal__target_id":"case_study"}},"revision_uid":{"type":"user--user","id":"1049c50e-1206-4778-b223-11e36bf3c10e","display_name":"Brandon Marsh","resourceIdObjMeta":{"drupal_internal__target_id":5}},"uid":{"type":"user--user","id":"1049c50e-1206-4778-b223-11e36bf3c10e","display_name":"Brandon Marsh","resourceIdObjMeta":{"drupal_internal__target_id":5}},"field_content":[{"type":"paragraph--text","id":"2a8f2014-0f8e-49da-a557-404264c30e40","drupal_internal__id":90,"drupal_internal__revision_id":6210,"langcode":"en","status":true,"created":"2025-03-06T17:34:24+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_copy":{"value":"\u003cp\u003eNearly a decade ago, a client asked us to build a data management system to process multiple datasets acquired via automated and manual feeds from third-party sources. The system was for internal-use-only and the processing was designed around a “black box” of analytical requirements based upon the client’s proprietary methodologies.\u003c/p\u003e\u003cp\u003eIn time, as regulatory obligations around transparency and auditing grew more stringent, it became apparent that the “black box” methodologies would need to be revised; not least because incoming third-party data was now changed, having been processed and reconciled according to new methods.\u003c/p\u003e\u003cp\u003eThe internal-use system had provided the client’s research team with powerful analytical capabilities for many years but its outputs were presented in a legacy ‘table’ format mirroring their XLSX files. They now wished to develop more user-friendly data visualisations and a branded interface for charts to use in their published reports.\u003c/p\u003e\u003cp\u003eIt was time for an overhaul, and the client asked 542 to lead the way.\u003c/p\u003e","format":"full_html","processed":"\u003cp\u003eNearly a decade ago, a client asked us to build a data management system to process multiple datasets acquired via automated and manual feeds from third-party sources. The system was for internal-use-only and the processing was designed around a “black box” of analytical requirements based upon the client’s proprietary methodologies.\u003c/p\u003e\u003cp\u003eIn time, as regulatory obligations around transparency and auditing grew more stringent, it became apparent that the “black box” methodologies would need to be revised; not least because incoming third-party data was now changed, having been processed and reconciled according to new methods.\u003c/p\u003e\u003cp\u003eThe internal-use system had provided the client’s research team with powerful analytical capabilities for many years but its outputs were presented in a legacy ‘table’ format mirroring their XLSX files. They now wished to develop more user-friendly data visualisations and a branded interface for charts to use in their published reports.\u003c/p\u003e\u003cp\u003eIt was time for an overhaul, and the client asked 542 to lead the way.\u003c/p\u003e"},"field_copy_size":"md","resourceIdObjMeta":{"target_revision_id":6210,"drupal_internal__target_id":90},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"c20dbcd0-e6be-42f9-a9cc-3ff1ac226d22","resourceIdObjMeta":{"drupal_internal__target_id":"text"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--spacer","id":"ba60db2e-8b38-4e9a-811e-749e0e836e33","drupal_internal__id":95,"drupal_internal__revision_id":6211,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_id":6211,"drupal_internal__target_id":95},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--image","id":"6cc45a31-1f5d-49d7-b764-666c162100b7","drupal_internal__id":210,"drupal_internal__revision_
1id":6212,"langcode":"en","status":true,"created":"2026-01-30T15:07:23+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"resourceIdObjMeta":{"target_revision_id":6212,"drupal_internal__target_id":210},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"8149d021-019b-4f95-9f03-c1e8bfebac6f","resourceIdObjMeta":{"drupal_internal__target_id":"image"}},"field_image":{"type":"file--file","id":"50b94c75-3118-4f0f-93f9-93838cc4b91b","drupal_internal__fid":163,"langcode":"en","filename":"Blackbox-2.jpg","uri":{"value":"public://2026-01/Blackbox-2.jpg","url":"https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/Blackbox-2.jpg?VersionId=zKno9DqFOZLwrqQD4yTsHCSNY9hdYdP8"},"filemime":"image/jpeg","filesize":1027345,"status":true,"created":"2026-01-30T15:07:46+00:00","changed":"2026-01-30T15:16:10+00:00","resourceIdObjMeta":{"alt":"Anchors on the beach","title":"","width":3024,"height":1701,"drupal_internal__target_id":163},"uid":{"type":"user--user","id":"1049c50e-1206-4778-b223-11e36bf3c10e","display_name":"Brandon Marsh","resourceIdObjMeta":{"drupal_internal__target_id":5}},"relationshipNames":["uid"]},"relationshipNames":["paragraph_type","field_image"]},{"type":"paragraph--spacer","id":"e475ae28-c525-47ed-b086-eb555f989a2b","drupal_internal__id":208,"drupal_internal__revision_id":6213,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_id":6213,"drupal_internal__target_id":208},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--text","id":"78e141dd-5ec4-482f-a66f-abe165d1bf97","drupal_internal__id":91,"drupal_internal__revision_id":6214,"langcode":"en","status":true,"created":"2025-03-06T17:36:25+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_copy":{"value":"\u003cp\u003eThe legacy code was approaching end-of-life in terms of functionality, and a comprehensive reworking of the existing architecture was in order:\u003c/p\u003e\u003cul\u003e\u003cli\u003eNew code to replace the legacy application\u003c/li\u003e\u003cli\u003eAdditional tables and data storage areas to support and enhance extensibility\u003c/li\u003e\u003cli\u003eA complete restructuring of the API\u003c/li\u003e\u003cli\u003eA new data validation toolkit\u003c/li\u003e\u003cli\u003eIntegration and platform unification\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eThis aligned with the client’s progress towards a data warehouse structure for all of its data, updating and integrating the old datasets into a new tool for analysis and reporting.\u003c/p\u003e","format":"full_html","processed":"\u003cp\u003eThe legacy code was approaching end-of-life in terms of functionality, and a comprehensive reworking of the existing architecture was in order:\u003c/p\u003e\u003cul\u003e\u003cli\u003eNew code to replace the legacy application\u003c/li\u003e\u003cli\u003eAdditional tables and data storage areas to support and enhance extensibility\u003c/li\u003e\u003cli\u003eA complete restructuring of the API\u003c/li\u003e\u003cli\u003eA new data validation toolkit\u003c/li\u003e\u003cli\u003eIntegration and platform unification\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eThis aligned with the client’s progress towards a data warehouse structure for all of its data, updating and integrating the old datasets into a new tool for analysis and reporting.\u003c/p\u003e"},"field_copy_size":"md","resourceIdObjMeta":{"target_revision_id":6214,"drupal_internal__target_id":91},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"c20dbcd0-e6be-42f9-a9cc-3ff1ac226d22","resourceIdObjMeta":{"drupal_internal__target_id":"text"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--spacer","id":"6b8c4e50-ad07-427d-b67f-1077c51b3536","drupal_internal__id":96,"drupal_internal__revision_
1id":6215,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_id":6215,"drupal_internal__target_id":96},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--image","id":"23c50683-51bf-4d2b-b09a-04b42ba0e94b","drupal_internal__id":211,"drupal_internal__revision_id":6216,"langcode":"en","status":true,"created":"2026-01-30T15:12:38+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"resourceIdObjMeta":{"target_revision_id":6216,"drupal_internal__target_id":211},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"8149d021-019b-4f95-9f03-c1e8bfebac6f","resourceIdObjMeta":{"drupal_internal__target_id":"image"}},"field_image":{"type":"file--file","id":"250a17ab-51d3-4a11-8180-e7be046b2b65","drupal_internal__fid":168,"langcode":"en","filename":"image4.jpg","uri":{"value":"public://2026-01/image4.jpg","url":"https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/image4.jpg?VersionId=Ah6dqp11ZwUgk_bGAgLlvhvgIDMo0jW5"},"filemime":"image/jpeg","filesize":146915,"status":true,"created":"2026-01-30T16:08:49+00:00","changed":"2026-01-30T16:09:08+00:00","resourceIdObjMeta":{"alt":"A boat in the harbour at sunset","title":"","width":1491,"height":839,"drupal_internal__target_id":168},"uid":{"type":"user--user","id":"b0db7318-d67f-4eab-bf01-ea05769179b5","resourceIdObjMeta":{"drupal_internal__target_id":2}},"relationshipNames":["uid"]},"relationshipNames":["paragraph_type","field_image"]},{"type":"paragraph--spacer","id":"230360e9-d955-4002-a520-db727ebb64e8","drupal_internal__id":209,"drupal_internal__revision_id":6217,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_id":6217,"drupal_internal__target_id":209},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--text","id":"6d4655ab-53eb-4dbe-9373-01978bd26ac4","drupal_internal__id":92,"drupal_internal__revision_id":6218,"langcode":"en","status":true,"created":"2025-03-06T17:38:50+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_copy":{"value":"\u003cp\u003eWe are adept at multi-disciplinary projects like these; our Data, Development and Design teams collaborated closely and a project plan was soon in place. Weekly check-ins meant that all stakeholders were kept abreast of the project’s progress whilst, internally, our Agile processes ensured that working priorities remained aligned with the client’s needs. Our mission was to transform an end-of-life product into a dynamic solution designed to accommodate constantly evolving analytical needs.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNew code to replace the legacy application\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe “black box” calculations would have to be dismantled. While there were many core functionalities that could be retained, several new stages were required to provide transparency to the processes of data ingestion, reconciliation, and publication. It was no longer appropriate for this to be a standalone application with siloed data and methodologies.\u003c/p\u003e\u003cp\u003eIn consultation with the client’s SMEs, 542’s analysts and developers re-developed the codebase to include data validation and audit logs, reducing the system’s reliance on developers to identify and mitigate data issues. While this increased the complexity of the system, it maximised transparency for the client and helped meet regulatory obligations.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eAdditional tables and data storage areas to support and enhance extensibility\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eAs the feeds, calculations, and reporting structures were being reworked, we were able to improve the storage and analytical capability of the system. In restructuring the data flow, we made it highly scalable and accessible. Designed for integration with the client’s wider data library it enabled unified indexing, standardised lookups, and more efficient data maintenance.\u003c/p\u003e\u003cp\u003eThe creation of new outputs dis
1playing more granular data, (geographical locations and flexible periodicities), as well as the addition of comparison tables (to show data before and after it had been transformed) greatly expanded the analytical potential of what had been a siloed black box.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eA complete restructuring of the API\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eTo support the increased capacity of the dataset, and its integration into the data library and our analytical dashboard, the API had to be rebuilt. We optimised both the infrastructure and interface to connect the newly-configured dataset to a suite of analytical and visualisation tools.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eA new data validation toolkit\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe original version of the app did not allow users to interrogate the proprietary calculations - data went into the black box, something happened, and it came out transformed. It was a fixed, isolated system with only a single stakeholder capable of validating the data. We saw the need to build a data validation toolkit that would automatically check in at key points in the ingestion and calculation process and identify any anomalies.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eIntegration and platform unification\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eHaving worked with the application, unchanged, for the best part of a decade, our client saw the opportunity for a comprehensive update to meet their evolving business objectives. As the project progressed new opportunities became apparent. The potential of the new system gave rise to many requests for additional features and functionalities that extended the scope of both this application and the wider database. Our Agile processes allowed us to keep pace with our client’s initiatives, adapting priorities and new features on a rolling basis while maintaining a tight grasp on deliverables, timeline, and cost.\u003c/p\u003e","format":"full_html","processed":"\u003cp\u003eWe are adept at multi-disciplinary projects like these; our Data, Development and Design teams collaborated closely and a project plan was soon in place. Weekly check-ins meant that all stakeholders were kept abreast of the project’s progress whilst, internally, our Agile processes ensured that working priorities remained aligned with the client’s needs. Our mission was to transform an end-of-life product into a dynamic solution designed to accommodate constantly evolving analytical needs.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNew code to replace the legacy application\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe “black box” calculations would have to be dismantled. While there were many core functionalities that could be retained, several new stages were required to provide transparency to the processes of data ingestion, reconciliation, and publication. It was no longer appropriate for this to be a standalone application with siloed data and methodologies.\u003c/p\u003e\u003cp\u003eIn consultation with the client’s SMEs, 542’s analysts and developers re-developed the codebase to include data validation and audit logs, reducing the system’s reliance on developers to identify and mitigate data issues. While this increased the complexity of the system, it maximised transparency for the client and helped meet regulatory obligations.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eAdditional tables and data storage areas to support and enhance extensibility\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eAs the feeds, calculations, and reporting structures were being reworked, we were able to improve the storage and analytical capability of the system. In restructuring the data flow, we made it highly scalable and accessible. Designed for integration with the client’s wider data library it enabled unified indexing, standardised lookups, and more efficient data maintenance.\u003c/p\u003e\u003cp\u003eThe creation of new outputs displaying more granular data, (geographical locations and flexible periodicities), as well as the addition of comparison tables (to show data before and after it had been transformed) greatly expanded the analytical potential of what had been a siloed black box.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eA complete restructuring of the API\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eTo support the increased capacity of the dataset, and its integration into the data library and our analytical dashboard, the API had to be rebuilt. We optimised both the infrastru
1cture and interface to connect the newly-configured dataset to a suite of analytical and visualisation tools.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eA new data validation toolkit\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe original version of the app did not allow users to interrogate the proprietary calculations - data went into the black box, something happened, and it came out transformed. It was a fixed, isolated system with only a single stakeholder capable of validating the data. We saw the need to build a data validation toolkit that would automatically check in at key points in the ingestion and calculation process and identify any anomalies.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eIntegration and platform unification\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eHaving worked with the application, unchanged, for the best part of a decade, our client saw the opportunity for a comprehensive update to meet their evolving business objectives. As the project progressed new opportunities became apparent. The potential of the new system gave rise to many requests for additional features and functionalities that extended the scope of both this application and the wider database. Our Agile processes allowed us to keep pace with our client’s initiatives, adapting priorities and new features on a rolling basis while maintaining a tight grasp on deliverables, timeline, and cost.\u003c/p\u003e"},"field_copy_size":"md","resourceIdObjMeta":{"target_revision_id":6218,"drupal_internal__target_id":92},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"c20dbcd0-e6be-42f9-a9cc-3ff1ac226d22","resourceIdObjMeta":{"drupal_internal__target_id":"text"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--spacer","id":"32a0dab1-8cfc-4a6d-86c7-3b8c770eedcf","drupal_internal__id":97,"drupal_internal__revision_id":6219,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_id":6219,"drupal_internal__target_id":97},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--image","id":"e562c15c-ee31-4d8a-9531-ef1bf7b65a9b","drupal_internal__id":212,"drupal_internal__revision_id":6220,"langcode":"en","status":true,"created":"2026-01-30T15:13:51+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"resourceIdObjMeta":{"target_revision_id":6220,"drupal_internal__target_id":212},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"8149d021-019b-4f95-9f03-c1e8bfebac6f","resourceIdObjMeta":{"drupal_internal__target_id":"image"}},"field_image":{"type":"file--file","id":"011775fe-814c-4776-b134-1bd062240447","drupal_internal__fid":167,"langcode":"en","filename":"hot-dog-juming-frog.jpg","uri":{"value":"public://2026-01/hot-dog-juming-frog.jpg","url":"https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/hot-dog-juming-frog.jpg?VersionId=XhoqrsEyiTD7gwnMRJocbMbW3CIMnzol"},"filemime":"image/jpeg","filesize":195033,"status":true,"created":"2026-01-30T16:06:45+00:00","changed":"2026-01-30T16:09:08+00:00","resourceIdObjMeta":{"alt":"Person jumping around like fool on a beach.","title":"","width":1000,"height":563,"drupal_internal__target_id":167},"uid":{"type":"user--user","id":"b0db7318-d67f-4eab-bf01-ea05769179b5","resourceIdObjMeta":{"drupal_internal__target_id":2}},"relationshipNames":["uid"]},"relationshipNames":["paragraph_type","field_image"]},{"type":"paragraph--spacer","id":"82d62b61-32ef-42be-ae38-aaec5d71a7e5","drupal_internal__id":213,"drupal_internal__revision_id":6221,"langcode":"en","status":true,"created":"2025-03-06T18:33:10+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_spacer_size":"article_md","resourceIdObjMeta":{"target_revision_
1id":6221,"drupal_internal__target_id":213},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"d082f00d-fd7e-47cf-9244-6b7def0af8da","resourceIdObjMeta":{"drupal_internal__target_id":"spacer"}},"relationshipNames":["paragraph_type"]},{"type":"paragraph--text","id":"60e5e221-e4ba-4d5d-ac43-c32f49b59d8f","drupal_internal__id":93,"drupal_internal__revision_id":6222,"langcode":"en","status":true,"created":"2025-03-06T17:40:23+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_content","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_copy":{"value":"\u003cp\u003eNo matter how carefully you plan, sometimes a client’s needs change during discovery and even into development. In this case, as soon as we started delivering test environments, our client identified new possibilities and opportunities and we were asked to extend the project scope.\u003c/p\u003e\u003cp\u003eThis type of scenario at any stage can present problems but we have found that transparency and openness to continuous adaptation pays dividends.\u003c/p\u003e\u003cp\u003eAllowing the client to customise the software over and above the initial requirements results in an extensible solution that not only reflects their changing needs but also saves them time and money.\u003c/p\u003e","format":"full_html","processed":"\u003cp\u003eNo matter how carefully you plan, sometimes a client’s needs change during discovery and even into development. In this case, as soon as we started delivering test environments, our client identified new possibilities and opportunities and we were asked to extend the project scope.\u003c/p\u003e\u003cp\u003eThis type of scenario at any stage can present problems but we have found that transparency and openness to continuous adaptation pays dividends.\u003c/p\u003e\u003cp\u003eAllowing the client to customise the software over and above the initial requirements results in an extensible solution that not only reflects their changing needs but also saves them time and money.\u003c/p\u003e"},"field_copy_size":"md","resourceIdObjMeta":{"target_revision_id":6222,"drupal_internal__target_id":93},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"c20dbcd0-e6be-42f9-a9cc-3ff1ac226d22","resourceIdObjMeta":{"drupal_internal__target_id":"text"}},"relationshipNames":["paragraph_type"]}],"field_featured_image":{"type":"file--file","id":"5455b430-bd4a-4c2c-8531-07b3f92ac589","drupal_internal__fid":161,"langcode":"en","filename":"Blackbox-1.jpg","uri":{"value":"public://2026-01/Blackbox-1.jpg","url":"https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-01/Blackbox-1.jpg?VersionId=tFPld4rDqd240najKpP2z0u5uvPYAgE_"},"filemime":"image/jpeg","filesize":561039,"status":true,"created":"2026-01-30T14:58:27+00:00","changed":"2026-01-30T15:01:01+00:00","resourceIdObjMeta":{"alt":"Opening up the Black Box","title":"","width":1400,"height":788,"drupal_internal__target_id":161},"uid":{"type":"user--user","id":"1049c50e-1206-4778-b223-11e36bf3c10e","display_name":"Brandon Marsh","resourceIdObjMeta":{"drupal_internal__target_id":5}},"relationshipNames":["uid"]},"field_meta_image":{"type":"file--file","id":"24844a2e-1f65-42bb-adad-d455ce476789","resourceIdObjMeta":{"alt":"Opening up the Black Box","title":"","width":1200,"height":626,"drupal_internal__target_id":166}},"field_related_content":null,"field_sidebar":[{"type":"paragraph--sidebar_detail","id":"c1fb6446-b4bf-4a01-84d3-c3aa3b561521","drupal_internal__id":94,"drupal_internal__revision_id":6223,"langcode":"en","status":true,"created":"2025-03-06T17:33:59+00:00","parent_id":"12","parent_type":"node","parent_field_name":"field_sidebar","behavior_settings":[],"default_langcode":true,"revision_translation_affected":null,"field_label":"Case Study","field_value":"Trading Volumes","resourceIdObjMeta":{"target_revision_id":6223,"drupal_internal__target_id":94},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"7f44c86e-4d75-482d-997e-73d5619d8c52","resourceIdObjMeta":{"drupal_internal__target_id":"sidebar_detail"}},"relationshipNames":["paragraph_type"]}],"field_teaser_image":{"type":"file--file","id":"d0cf0cae-eefa-42c4-b774-e1d9311deec3","resourceIdObjMeta":{"alt":"Opening up the Black Box","title":"","width":1400,"height":788,"drupal_internal__target_id":162}},"relationshipNames":["node_type","revision_uid","uid","field_content","field_featured_image","field_meta_image","field_related_content","field_sidebar","field_teaser_image"]},"footerBlock":{"type":"block_content--footer","id":"b1e624be-44fa-4016-b1d0-ce596a4792c5","drupal_internal__id":1,"drupal_internal__revision_
1id":1,"langcode":"en","revision_created":"2025-02-10T23:58:17+00:00","status":true,"info":"Footer","changed":"2026-04-27T11:12:11+00:00","reusable":true,"default_langcode":true,"revision_translation_affected":true,"metatag":[],"body":{"value":"\u003cp\u003eWe help businesses harness data to drive smarter decisions, enhance experiences, and fuel growth. Let’s turn your vision into reality.\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003eWe help businesses harness data to drive smarter decisions, enhance experiences, and fuel growth. Let’s turn your vision into reality.\u003c/p\u003e","summary":""},"field_contact_button_label":"Contact us","field_cyber_essentials_link":{"uri":"https://registry.blockmarktech.com/organisations/GBLTD09682228/","full_url":"https://registry.blockmarktech.com/organisations/GBLTD09682228/","url":"https://registry.blockmarktech.com/organisations/GBLTD09682228/","title":"","options":[]},"field_footer_links":[{"uri":"entity:node/19","full_url":"/terms-and-conditions","url":"/terms-and-conditions","title":"Terms and Conditions","options":[]},{"uri":"entity:node/21","full_url":"/cookie-policy","url":"/cookie-policy","title":"Cookie policy","options":[]},{"uri":"entity:node/20","full_url":"/privacy-notice","url":"/privacy-notice","title":"Privacy Policy","options":[]}],"field_smallprint":{"value":"\u003cp\u003e542 Digital Limited. All rights reserved.\u003c/p\u003e\u003cp\u003e542 Digital is a registered company in the UK with company number 09682228.\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003e542 Digital Limited. All rights reserved.\u003c/p\u003e\u003cp\u003e542 Digital is a registered company in the UK with company number 09682228.\u003c/p\u003e"},"field_title":"Let's create something great together","block_content_type":{"type":"block_content_type--block_content_type","id":"2db3c9fe-ed79-4196-a4be-f33d9a0812f0","resourceIdObjMeta":{"drupal_internal__target_id":"footer"}},"revision_user":null,"field_contact_info":{"type":"paragraph--footer_contact","id":"884da3d1-5f27-4be9-8357-70a236be5e01","drupal_internal__id":120,"drupal_internal__revision_id":2631,"langcode":"en","status":true,"created":"2025-03-11T11:16:08+00:00","parent_id":"1","parent_type":"block_content","parent_field_name":"field_contact_info","behavior_settings":[],"default_langcode":true,"revision_translation_affected":true,"field_address":{"value":"\u003cp\u003e\u003ca href=\"https://maps.app.goo.gl/Kr95FkaDqCCPX64M9\"\u003e\u003cstrong\u003e542 Digital - London HQ\u2028\u003c/strong\u003e\u003c/a\u003e\u003cbr\u003eUnit 306, VOX Studios\u003cbr\u003e1-45 Durham Street\u003cbr\u003eLondon SE11 5JH\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003e\u003ca href=\"https://maps.app.goo.gl/Kr95FkaDqCCPX64M9\"\u003e\u003cstrong\u003e542 Digital - London HQ\u2028\u003c/strong\u003e\u003c/a\u003e\u003cbr\u003eUnit 306, VOX Studios\u003cbr\u003e1-45 Durham Street\u003cbr\u003eLondon SE11 5JH\u003c/p\u003e"},"field_button_link":{"uri":"mailto:[email protected]","full_url":"mailto:[email protected]","url":"mailto:[email protected]","title":"[email protected]","options":[]},"field_copy":{"value":"\u003cp\u003eRegular trading hours Monday - Friday\u003cbr\u003eClosed evenings, weekends \u0026amp; UK bank holidays\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003eRegular trading hours Monday - Friday\u003cbr\u003eClosed evenings, weekends \u0026amp; UK bank holidays\u003c/p\u003e"},"field_map_centre_location":{"lat":51.486,"lng":-0.119,"data":[],"value":"51.486, -0.119"},"resourceIdObjMeta":{"target_revision_id":2631,"drupal_internal__target_id":120},"paragraph_type":{"type":"paragraphs_type--paragraphs_type","id":"b7ece35e-315e-4369-8727-545f1202341a","resourceIdObjMeta":{"drupal_internal__target_id":"footer_contact"}},"relationshipNames":["paragraph_type"]},"field_cyber_essentials_logo":{"type":"file--file","id":"85c60eef-8320-41b2-8d73-8da616187968","drupal_internal__fid":184,"langcode":"en","filename":"cyber-essentials-cropped_0.svg","uri":{"value":"public://2026-04/cyber-essentials-cropped_0.svg","url":"https://website-filesystem.542.cloud/website-2025/s3fs-public/2026-04/cyber-essentials-cropped_0.svg?VersionId=zI9RMI2vFqL5S8Vm38Sx9z1pXudNHdNs"},"filemime":"image/svg+xml","filesize":13874,"status":true,"created":"2026-04-24T11:20:58+00:00","changed":"2026-04-24T11:21:01+00:00","resourceIdObjMeta":{"alt":"Cyber Essentials Plus","title":"","width":null,"height":null,"drupal_internal__target_id":184},"uid":{"type":"user--user","id":"b390a2de-16c7-4cdd-ba27-204996e37f82","resourceIdObjMeta":{"drupal_internal__target_id":4}},"relationshipNames":["uid"]},"relationshipNames":["block_content_type","revision_user","field_contact_info","field_cyber_essentials_logo"]},"headerBlock":{"type":"block_content--header","id":"f63e294a-554b-4564-9e88-5bb383ab265d","drupal_internal__id":2,"drupal_internal__revision_
1id":2,"langcode":"en","revision_created":"2025-02-11T11:25:31+00:00","status":true,"info":"Header","changed":"2025-02-27T14:22:18+00:00","reusable":true,"default_langcode":true,"revision_translation_affected":true,"metatag":[],"field_contact_button_label":"Contact us","field_social_links":[{"uri":"https://bsky.app/profile/542digital.bsky.social","full_url":"https://bsky.app/profile/542digital.bsky.social","url":"https://bsky.app/profile/542digital.bsky.social","title":"Blue Sky","options":[]},{"uri":"https://www.linkedin.com/company/542-digital/","full_url":"https://www.linkedin.com/company/542-digital/","url":"https://www.linkedin.com/company/542-digital/","title":"LinkedIn","options":[]},{"uri":"https://x.com/542digital","full_url":"https://x.com/542digital","url":"https://x.com/542digital","title":"X","options":[]}],"block_content_type":{"type":"block_content_type--block_content_type","id":"5e552a79-7b98-43e1-a441-ddc4b8ad756c","resourceIdObjMeta":{"drupal_internal__target_id":"header"}},"revision_user":null,"relationshipNames":["block_content_type","revision_user"]},"contactModal":{"type":"block_content--contact_modal","id":"d25a86fa-cb77-412d-b7a8-d74ac8840efc","drupal_internal__id":3,"drupal_internal__revision_id":3,"langcode":"en","revision_created":"2025-02-27T14:23:04+00:00","status":true,"info":"Contact","changed":"2026-04-24T10:49:58+00:00","reusable":true,"default_langcode":true,"revision_translation_affected":true,"metatag":[],"field_contact_links":[{"uri":"tel:44208542499","full_url":"tel:44208542499","url":"tel:44208542499","title":"+44 208 542 499","options":[]},{"uri":"mailto:[email protected]","full_url":"mailto:[email protected]","url":"mailto:[email protected]","title":"[email protected]","options":[]},{"uri":"https://maps.app.goo.gl/ZM6Avn7Pan5xPsUv9","full_url":"https://maps.app.goo.gl/ZM6Avn7Pan5xPsUv9","url":"https://maps.app.goo.gl/ZM6Avn7Pan5xPsUv9","title":"Find us on the map","options":[]}],"field_form_completion_button_lab":"Return to 542.digital","field_form_completion_copy":{"value":"\u003cp\u003eThanks for reaching out. We’ve received your message and will get back to you as soon as possible. If it’s urgent, feel free to contact us directly.\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003eThanks for reaching out. We’ve received your message and will get back to you as soon as possible. If it’s urgent, feel free to contact us directly.\u003c/p\u003e"},"field_form_completion_title":"Message received!","field_map_center":{"lat":51.486,"lng":-0.119,"data":[],"value":"51.486, -0.119"},"field_smallprint":{"value":"\u003cp\u003eBy contacting us, you acknowledge that you have read, understood, and agree to our \u003ca href=\"https://542.digital/terms-and-conditions\"\u003eTerms \u0026amp; Conditions\u003c/a\u003e and \u003ca href=\"https://542.digital/privacy-notice\"\u003ePrivacy Policy\u003c/a\u003e. Your information will be handled in accordance with applicable data protection laws.\u003c/p\u003e","format":"basic_html","processed":"\u003cp\u003eBy contacting us, you acknowledge that you have read, understood, and agree to our \u003ca href=\"https://542.digital/terms-and-conditions\"\u003eTerms \u0026amp; Conditions\u003c/a\u003e and \u003ca href=\"https://542.digital/privacy-notice\"\u003ePrivacy Policy\u003c/a\u003e. Your information will be handled in accordance with applicable data protection laws.\u003c/p\u003e"},"field_title":"Get in touch","block_content_type":{"type":"block_content_type--block_content_type","id":"cce82421-ab96-488d-ba9e-20b68ed0cecd","resourceIdObjMeta":{"drupal_internal__target_id":"contact_modal"}},"revision_user":null,"relationshipNames":["block_content_type","revision_user"]}},"__N_SSG":true},"page":"/[...slug]","query":{"slug":["case-studies","opening-black-box"]},"buildId":"Glr0NwRar8CuFuU80Pxgq","isFallback":false,"dynamicIds":[562,3443,5289,1007,6917,615,6950,2909,1567,7657,1610,8193],"gsp":true,"scriptLoader":[]}</script>
1</body></html>

Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.