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class="notice-bar-coming-soon notice-bar-line"><span class="notice-bar-label"><strong>Up next:</strong></span><span class="notice-bar-content"><a href="/conferenza/conferences/2026-global-less-conference-tokyo-19">2026 Global LeSS Conference Tokyo, 8-9 October</a></span></div><div class="notice-bar-courses notice-bar-line"><span class="notice-bar-label"><strong>Courses:</strong></span><span class="notice-bar-content"><a href="/course-details/certified-less-practitioner-chicago-4518">Certified LeSS Practitioner: Principles to Practices, 14-16 October, Chicago, United States</a><span class="course-separator"></span><a href="/course-details/less-in-action-large-product-developers-tokyo-4478">LeSS in Action (Large Product Developers), 19-23 October, Tokyo, Japan</a></span></div><span class="btn-close close-button"> </span></div></div> 141</div> 142 143</div> 144 145 146 147<div> 148<div class='row-offcanvas wrapper'> 149<div class='container'> 150<div class='row'> 151<section class='col-12 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name='message[from_attributes][city]' id='message_from_attributes_city' /></div></div> 159</div> 160<div class='form-inputs'> 161<div class='mb-3 text required message_message'><label class='form-label text required' for='message_message'>Message <abbr title='required'>*</abbr></label><textarea class='form-control text required' rows='10' name='message[message]' id='message_message'> 162</textarea></div> 163</div> 164 165</form>" type="button" href=""><span><span class="pr-1">Contact The Trainer</span></span></a> 166</div> 167<p> 168<div class='course-info-side-bar'> 169<strong>Course:</strong> 170LeSS in Action (Large Product Developers) 171<br> 172<strong>Location:</strong> 173Tokyo 174<br> 175<strong>Date:</strong> 1762026-10-19 177<br> 178<strong>Trainer:</strong> 179<a href="/profiles/terry-yin-1">Terry Yin</a> 180</div> 181</p> 182</div> 183 184</section> 185<section class='col-12 col-md-9 main-content'> 186<div class='main_content'> 187<button class='sidebar-toggle' id='toggle' 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196<h1>LeSS in Action (Large Product Developers)</h1><ul class="post-meta course-header"><li><label>Date:</label><span>October 19, 2026 (5 days)</span></li><li><label>Time:</label><span><span>09:00 ~ 18:00</span></span></li><li><label>By:</label><span><a href="/profiles/terry-yin-1">Terry Yin</a></span></li><li><label>Language:</label><span>æ¥æ¬èª+è±èªé訳</span></li></ul><div class="course-header"><div class="col-sm-12"><label class="address">Address:</label>Red Hatæ ªå¼ä¼ç¤¾<br />æ±äº¬é½æ¸è°·åºæµæ¯å¯¿4-1-18 æµæ¯å¯¿ããªãã¼ã3é<br />Tokyo<br />Japan</div></div><div class="d-lg-none"><a class="btn btn-primary btn-xlarge" onclick="trackOutboundLink('course_lead', 'course 4478 at Tokyo');" href="https://docs.google.com/forms/d/e/1FAIpQLSdRNtLybXblhiN-lQ1BApR9jCmZAKeZcrRju7Qy_miVBNytbg/viewform?usp=dialog"><span>Register For This Course<span aria-hidden="true" class="glyphicon glyphicon-forward"> </span></span></a></div><p> 197<strong> 198Description 199: 200</strong> 201<p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/igyzE1WQPKU" width="560"></iframe></p> 202 203<blockquote> 204<p><span style="font-size:18px;"><strong>Organizational</strong> Agility is constrained by <strong>Technical</strong> Agility.</span></p> 205</blockquote> 206 207<table border="0" cellpadding="1" cellspacing="1" style="width:100%;"> 208 <tbody> 209 <tr> 210 <td style="background-color:lightgrey;"> 211 <p><span style="font-size:16px;">The 5-day development practice course is 70% hands-on and 30% lecture and has three main focuses: <strong>Large-Scale Scrum</strong>, <strong>technical practices</strong>, and <strong>authentic team dynamics</strong>. It covers Scrum practices such as cross-team Sprint Planning, Backlog Refinement, working as a team, and many technical practices such as <strong>AI-Augmented Development</strong>, <strong>Test-Driven Development</strong>, <strong>Continuous Integration</strong>, <strong>Acceptance Test-Driven Development, and Refactoring</strong>. It also covers how to apply these practices in a <strong>legacy codebase</strong> situation.</span></p> 212 </td> 213 </tr> 214 </tbody> 215</table> 216 217<p><strong>Who is this class for:</strong></p> 218 219<p>We don't expect participants to have prior knowledge of the tech stack listed below, including the programming languages or domain. People are welcome to the class as long as they are fluent software developers.</p> 220 221<p>We also allow 1~2 non-current developers (e.g., a ScrumMaster or PO) in each class, as long as they have some development experience and promise to work as a developer in a team in the class. So far, their feedback is even better than the developers:-) It's probably due to the opportunity to observe a team from within and the others doing their job.</p> 222 223<p><strong>What did people say about my course:</strong></p> 224 225<p>Testimonial from <a data-entity-urn="urn:li:fsd_profile:ACoAAAA9fqIBQ9a1p4U6eC5naPPKRrFrc1wP8oU" data-guid="0" data-object-urn="urn:li:member:4030114" data-original-text="Bastiaan van Hamersveld" data-test-ql-mention="true" href="https://www.linkedin.com/#" spellcheck="false">Bastiaan van Hamersveld</a> (CEO of the LeSS Company) <a href="https://www.linkedin.com/posts/konstantin-ribel_lessworks-technicalexcellence-tdd-activity-7121106565994024961-0h2K?utm_source=share&utm_medium=member_desktop">https://www.linkedin.com/posts/konstantin-ribel_lessworks-technicalexcellence-tdd-activity-7121106565994024961-0h2K?utm_source=share&utm_medium=member_desktop</a></p> 226 227<p>From Oleksii Khodakivskyi:<br /> 228<img alt="" src="/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBaGFnIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--645773634d766955b875f635e3ae45e485a938f8/IMG_1074.jpeg" style="width: 600px; height: 406px;" /></p> 229 230<p><strong>Current Tech Stack:</strong></p> 231 232<p>We chose a particular stack so that people do real work in the class, but the specific stack doesn'
232t matter so much for participation. Our current stack is:</p> 233 234<ul> 235 <li>Cursor with AI models as the main IDE for development</li> 236 <li> a web service (<a href="https://doughnut.odd-e.com/">https://doughnut.odd-e.com</a>)</li> 237 <li>VueJS 3 on the frontend using TypeScript</li> 238 <li>Spring Boot backend using Java and MySQL</li> 239 <li>various external service dependencies</li> 240 <li>Cypress for end-to-end testing</li> 241 <li>Github Action for CI/CD</li> 242 <li>Google Cloud for production</li> 243</ul> 244 245<p>The source code is here: <a href="https://github.com/nerds-odd-e/doughnut">https://github.com/nerds-odd-e/doughnut</a></p> 246</p> 247<p> 248<strong> 249Agenda 250: 251</strong> 252<p><meta charset="UTF-8" /></p> 253 254<p><strong>Monday:</strong></p> 255 256<ul> 257 <li>Requirement workshop / PBR / A-TDD</li> 258 <li>Multiple Team Sprint Plannings</li> 259</ul> 260 261<p><strong>Tuesday</strong>:</p> 262 263<ul> 264 <li>Test-Driven Development</li> 265 <li>AI-Augmented Software Development</li> 266 <li>Scope management</li> 267</ul> 268 269<p><strong>Wednesday</strong>:</p> 270 271<ul> 272 <li>Refactoring in the age of Artificial Intelligence</li> 273 <li>Building fast feedback loops</li> 274 <li>Knowledge management in software development</li> 275</ul> 276 277<p><strong>Thursday</strong>:</p> 278 279<ul> 280 <li>Evaluating Software Design in the age of Artificial Intelligence</li> 281 <li>Definition of Done</li> 282 <li>Coordination and Integration</li> 283 <li>Feature Teams</li> 284</ul> 285 286<p><strong>Friday</strong>:</p> 287 288<ul> 289 <li>Working with Legacy Code</li> 290 <li>Adoption of new practices</li> 291 <li>Retrospective</li> 292</ul> 293</p> 294<p> 295<strong> 296Details 297: 298</strong> 299<p><meta charset="UTF-8" /></p> 300 301<p>Welcome to the LeSS in Action training! This course is designed to help you develop the skills and mindset needed to thrive in a large-scale product development environment. Through hands-on practice, on-time coaching, and collaborative learning, you will gain practical experience in both technical and organizational aspects of Large-Scale Scrum (LeSS).</p> 302 303<h3>Product Backlog Refinement Workshop</h3> 304 305<p>One of the most critical activities in LeSS is the Product Backlog Refinement (PBR) workshop. By conducting the PBR workshop within the sprint and involving multiple teams, we will cover three essential aspects:</p> 306 307<ol> 308 <li>Splitting big items into smaller, manageable tasks</li> 309 <li>Detailing the items to enhance clarity and understanding</li> 310 <li>Estimating the effort required for each item</li> 311</ol> 312 313<p>We may also explore optional techniques based on the context and needs of the group, such as impact mapping, story mapping, specification by example, and estimation ceremonies.</p> 314 315<h3>Definition of Done</h3> 316 317<p>A well-defined Definition of Done (DoD) is crucial to maintaining quality and consistency across teams. We will explore its purpose, how to create and use an effective DoD, and discuss who should be responsible for ensuring it is followed.</p> 318 319<h3>Sprint Planning</h3> 320 321<p>The PBR workshop also covers much of Cross-team Sprint Planning Part One, as there is only one sprint. We will then dive into Sprint Planning Part Two, where
321teams break down work and plan their execution in detail.</p> 322 323<h3>Acceptance Test-Driven Development with Cucumber and Friends</h3> 324 325<p>Driving the iteration with concrete examples derived from the PBR workshop is key to maintaining alignment and quality. In this segment, we will discuss technical approaches, good practices, and conventions for acceptance test-driven development (ATDD) using Cucumber and related tools.</p> 326 327<h3>Test-Driven Development (TDD)</h3> 328 329<p>Starting from Day 2, all coding will follow the principles of Test-Driven Development. We will briefly introduce the philosophy with simple exercises, but most of the learning will come from hands-on practice and real-time coaching, allowing participants to internalize the approach through experience.</p> 330 331<h3>Collaboration Techniques</h3> 332 333<p>Effective collaboration is essential for success in a Large-Scale Scrum environment. We will explore fundamental techniques and practices that enable teams to work together efficiently, including:</p> 334 335<ul> 336 <li>Working in teams and fostering collaboration</li> 337 <li>Source Control Management (SCM) and Build Automation</li> 338 <li>Pair Programming and Collaborative Development</li> 339 <li>Continuous Integration (CI) and CI Systems</li> 340 <li>Collective Code Ownership</li> 341</ul> 342 343<h3>Code Refactoring</h3> 344 345<p>Maintaining a healthy codebase is an ongoing effort. This segment covers why code refactoring is essential, what to look for when identifying code smells, and how to effectively clean up and improve code without introducing new issues.</p> 346 347<h3>More on Test Automation</h3> 348 349<p>Beyond automated acceptance and unit tests, we will dive deeper into effective testing strategies, including:</p> 350 351<ul> 352 <li>Real and exploratory testing</li> 353 <li>Product-wise testing strategies</li> 354 <li>Best practices for automated testing</li> 355 <li>Unit testing in different programming languages</li> 356</ul> 357 358<h3>Thinking About Design</h3> 359 360<p>Design is not just a one-time activity but an ongoing process. We will discuss the difference between emergent design and traditional waterfall-style design, and introduce modern design principles and paradigms. We will also revisit real testing to ensure our design decisions support effective quality assurance.</p> 361 362<h3>Feature Teams</h3> 363 364<p>With the knowledge gained from the first four days, we will revisit the concept of Feature Teams to understand how technical practices align with organizational structures and how to maximize the potential of self-sufficient teams.</p> 365 366<h3>Working with Legacy Code</h3> 367 368<p>Inspired by Michael Feathers' "Working Effectively with Legacy Code," this segment covers practical strategies for dealing with untested and outdated
368codebases, as well as how to build confidence when making changes.</p> 369 370<h3>AI-Augmented Development</h3> 371 372<p>As AI becomes increasingly integral to software development, Product Developers must take on the role of critical thinkers and evaluators. Human judgment remains essential in guiding AI tools and ensuring that generated solutions align with real-world needs. In this segment, we will cover:</p> 373 374<ul> 375 <li>Collaborating effectively with AI agent tools to enhance productivity</li> 376 <li>Fundamental principles of integrating AI into the development process</li> 377 <li>Understanding how to evaluate AI-generated code and results critically</li> 378 <li>Redefining what constitutes "good" code as AI becomes more advanced—shifting from code as a purely human artifact to a co-created product of human and AI collaboration</li> 379</ul> 380 381<h3>Craftsmanship</h3> 382 383<p>We will discuss the concept of software craftsmanship as an alternative metaphor for career progression in software development. This perspective emphasizes continuous learning and skill enhancement to become a master of your craft.</p> 384 385<h3>Retrospectives</h3> 386 387<p>To conclude the training, we will conduct a retrospective to reflect on the journey and lessons learned. Participants will experience a well-structured retrospective, discuss common pitfalls, and explore how to facilitate effective retrospectives in large organizations.</p> 388 389<h3>Emergent and Context-Sensitive Learning</h3> 390 391<p>No two trainings are the same. The dynamic nature of the course content means that many sessions will be shaped by the challenges faced by the participants. Through adaptive learning and practical problem-solving, you will gain the skills needed to thrive in real-world, large-scale product development environments.</p> 392 393<p>We look forward to working with
393you and embarking on this journey together!</p> 394</p> 395<p> 396<strong>Price:</strong> 397550,000 JPY (VAT might be applied) 398</p> 399<div class="d-lg-none"><a class="btn btn-primary btn-xlarge" onclick="trackOutboundLink('course_lead', 'course 4478 at Tokyo');" href="https://docs.google.com/forms/d/e/1FAIpQLSdRNtLybXblhiN-lQ1BApR9jCmZAKeZcrRju7Qy_miVBNytbg/viewform?usp=dialog"><span>Register For This Course<span aria-hidden="true" class="glyphicon glyphicon-forward"> </span></span></a></div></div></div> 400 401</div> 402</div> 403</section> 404</div> 405</div> 406</div> 407 408 409 410</div> 411<footer> 412<div id='footer'> 413 414 415<div class='container'> 416<p> 417<small>Copyright © 2014 ~ 2026 418<a href='http://less.works'>The LeSS Company B.V.</a> 419All Rights Reserved 420</small> 421 422</p> 423<div class='footer-links'> 424<p> 425<a href="/resources/about">About Us</a> 426| 427<a href="/resources/privacy">Privacy</a> 428| 429<a href="/users">Member Directory</a> 430| 431<a href="/resources/support">Support</a> 432| 433<a href="/resources/contact">Contact Us</a> 434</p> 435<p> 436<a class='btn' href='https://x.com/less_works' target='_blank'> 437<i class='svgbtn svgbtn--twitter'></i> 438</a> 439<a class='btn' href='https://www.facebook.com/less.works' target='_blank'> 440<i class='svgbtn svgbtn--facebook'></i> 441</a> 442<a class='btn' href='https://www.linkedin.com/company/the-less-company' target='_blank'> 443<i class='svgbtn svgbtn--linkedin'></i> 444</a> 445<a class='btn' href='https://www.youtube.com/channel/UCKMzkybDzfqKP46FHhSziXQ' target='_blank'> 446<i class='svgbtn svgbtn--youtube'></i> 447</a> 448</p> 449</div> 450</div> 451 452</div> 453</footer> 454<div class='support-modal-overlay' id='supportModal' onclick='if(event.target === this) this.classList.remove('active');'> 455<div class='support-modal'> 456<h3>Contact Support</h3> 457<div class='support-modal-links'> 458<a class='support-email-link' href='mailto:[email protected]'> 459✉ 460[email protected] 461</a> 462<a class='whatsapp-link' href='https://wa.me/31613196419' target='_blank'> 463💬 464WhatsApp 465</a> 466<a class='webchat-link' href='https://web.whatsapp.com/send?autoload=1&app_absent=0&phone=31613196419' target='_blank'> 467🌐 468Web Chat 469</a> 470</div> 471</div> 472</div> 473 474<div aria-label='Navigation' aria-modal='true' class='mobile-menu-overlay' id='mobile-menu-overlay' role='dialog'> 475<div class='mobile-menu-container'> 476<div class='mobile-menu-header'> 477<div class='mobile-menu-logo'> 478<a href="/"><img alt='LeSS' src='/img/Less-Logo-7.png'> 479</a></div> 480<button aria-label='Close' class='mobile-menu-close' type='button'> 481<span class='glyphicon glyphicon-remove'></span> 482</button> 483</div> 484<div class='mobile-menu-content'> 485<div class='mobile-menu-section mobile-search'> 486<form action='/search' class='mobile-search-form' method='get'> 487<div class='input-group'> 488<input aria-label='Search' class='form-control' name='q' placeholder='Search' type='text'> 489<button class='btn btn-primary' type='submit'> 490<span class='glyphicon glyphicon-search'></span> 491</button> 492</div> 493</form> 494</div> 495<div class='mobile-menu-section mobile-main-nav'> 496<ul class='mobile-nav-list'> 497<li class='mobile-nav-item'> 498<button aria-expanded='false' class='mobile-submenu-toggle' type='button'> 499<span class='mobile-nav-text'>Overview</span> 500<span class='glyphicon glyphicon-chevron-down toggle-icon'></span> 501</button> 502<ul class='mobile-nav-submenu'> 503<li> 504<a href="/less/framework">What is LeSS? 505</a></li> 506<li> 507<a href="/less/principles">Core Principles 508</a></li> 509<li> 510<a href="/less/structure">
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