Leverage Domain-Driven Design throughout testing @ DDD Europe

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Leverage Domain-Driven Design throughout testing

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When I was young…….

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7 To communicate effectively, the code must be based on the same language used to write the requirements - the same language that the developers speak with each other and with domain experts - Eric Evans

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Jira Driven Communication

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12 Any organization that designs a system (defined more broadly here than just information systems) will inevitably produce a design whose structure is a copy of the organization's communication structure. — Mel Conway

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13 https://martinfowler.com/articles/microservices.html

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14 A separate QA/Test team lead to silod test suites, with their own language. Use isolated test per Bounded Context, save all tests under source control where the code resides.

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15 “The indirectness of communication conceals the formation of schisms—different team members use terms differently but don’t realize it.” - Eric Evans

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shifting the burden to the intervenor

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24 A group of people is not a team, focus on collaboration as a team. Do more Pairing/Mobbing, create collective ownership.

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25 Focus on Diversity, everyone is individual and different. Focus on Equality, equal access to opportunities Focus on Inclusion, create a sense of belonging.

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26 “In the old waterfall method, the business experts talk to the analysts, and analysts digest and abstract and pass the result along to the programmers, who code the software. This approach fails because it completely lacks feedback.” - Eric Evans

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Still a waterfall…..

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31 “Apophany” that moment when a sufferer says, “Oh! I get it!” when they really don’t. - Liz Keogh https://lizkeogh.com/2015/09/09/on-epiphany-and-apophany/

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33 https://lizkeogh.com/2015/09/09/on-epiphany-and-apophany/ Build beliefs Draw conclusions Generate assumptions Filter data Observe data

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35 The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge. - Daniel J. Boorstin

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36 Don’t telephone game requirements, get ‘first-hand knowledge’, battle your bias.

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37 “Knowledge crunching is an exploration, and you can’t know where you will end up.” - Eric Evans

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48 Don’t only talk about requirements, visualise, actively participate while exploring requirements. Even better, experience it yourself!

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49 “A document shouldn’t try to do what the code already does well.” - Eric Evans

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We all know or should know that language is fluid, liquid, subject to the whims of the people. Language evolves, as it should. Because language changes to accommodate new users, the older users resist and complain. http://tednellen.blogspot.com/2013/04/language-is-fluid.html

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#MoreCatTax @kenny_baas Baasie.com xebia.com/blog/author/kbaas/ https://speakerdeck.com/baasie