Tech Lead Journal
Tech Lead Journal
Feb 14, 2022
#76 - Learning Domain-Driven Design - Vladik Khononov
Play • 57 min

“Interactions with domain experts play a key role in implementing software. You have to make sure that you understand the problem you’re solving. You cannot provide a software solution without understanding the problem first."

Vladik Khononov is the author of “Learning Domain-Driven Design”. In this episode, we discussed in-depth about Domain-Driven Design (DDD) and Vlad started by sharing why understanding business domain is crucial in software engineering and how DDD can help build the shared understanding between domain experts and software engineers. Vlad then explained the two important designs in DDD, i.e. the strategic and tactical designs, and how they relate to each other. For each design, Vlad touched on some important patterns, such as bounded context, context map, subdomain, aggregate, entity, and value object. Towards the end, Vlad gave great tips on applying DDD to brownfield projects and how those projects can benefit the most from some of the DDD practices.

Listen out for:

  • Career Journey - [00:06:05]
  • Importance of Understanding Business Domain - [00:10:42]
  • How Domain-Driven Design Helps - [00:16:12]
  • DDD Strategic Design - [00:20:21]
  • Subdomain - [00:26:51]
  • DDD Tactical Design - [00:32:44]
  • Aggregate Pattern - [00:34:36]
  • Entity Pattern - [00:40:43]
  • Implementing DDD for Legacy System - [00:43:24]
  • 3 Tech Lead Wisdom - [00:46:52]

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Vladik Khononov’s Bio
Vlad (Vladik) Khononov is a software engineer with over 20 years of industry experience, during which he has worked for companies large and small in roles ranging from webmaster to chief architect. Vlad maintains an active media career as an author, public speaker, and blogger. He travels the world consulting and talking about domain-driven design, microservices, and software architecture in general. Vladik lives in Northern Israel with his wife and an almost-reasonable number of cats.

Follow Vladik:


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Today’s episode is proudly sponsored by Skills Matter, the global community and events platform for software professionals.
Skills Matter is an easier way for technologists to grow their careers by connecting you and your peers with the best-in-class tech industry experts and communities. You get on-demand access to their latest content, thought leadership insights as well as the exciting schedule of tech events running across all time zones.
Head on over to skillsmatter.com to become part of the tech community that matters most to you - it’s free to join and easy to keep up with the latest tech trends.


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For more info about the episode (including quotes and transcript), visit techleadjournal.dev/episodes/76.

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