Ralf Westphal ⁽¹¹⁸⁾

I'm working as a trainer and consultant in the software business. My focus is on sustainable software development, high long-term productivity, and making teams fit for a VUCA world. Back in 2009 I co-founded a large German Clean Code initiative https://clean-code-developer.de. Since 1997 I've written extensively about software development in magazines, books and primarily in my blogs. In addition I'm a speaker at developer conferences in Germany, Europe and abroad.

25.07.2019

Hamburg Style TDD - Bank Kata

There are already a few different styles of TDD out there. Still, though, my feeling is something is missing in the realm of test-first or test-driven development. I tried to explain that in my posting introducing the „Hamburg style TDD“. And then I showed what…

24.07.2019

Co-creation at work

Last night I experienced live within 15 minutes an example of co-creation. What an unexpected treat from David who was the presenter at the weekly Business Growth event at Coworking Bansko. David, who talked about visual communication, asked us at the end to apply what…

23.07.2019

Hamburg Style TDD - Diamond Kata

In a previous article I tried to explain why I’m not satisfied with the existing schools of TDD: They are not really tapping the developers’ capability to think. At least for my taste. Or to say it more bluntly: They are dumbing down developers. Sure,…

22.07.2019

Hamburg Style TDD

There are a number of „TDD styles“ (or even „schools of TDD“): And I cannot identify myself with any of them. Not 100% at least. Recently I attended a talk by Marco Emrich who showed the above styles next to each other - and I…

16.07.2019

Command Query Notification Separation (CQNS)

CQS (Command Query Separation) is a well known principle for disentangling method responsibilities in OO software. I had known it for quite some time, but only recently actually have taken it to heart. And now I’m really loving it. I cannot imagine doing without it.