Hi, I’m Ralf and I help quality conscious software teams to deliver more reliably, make better predictions, and to progress at a more sustainable pace.

Ralf Westphal

Event Sourcing Challenge: Bowling Game Kata

Event Sourcing ist für mich die Zukunft der grundsätzlichen Zustandshaltung in Software. Alles andere ist eine Optimierung, die man nicht leichtfertig und schon gar nicht vorzeitig vornehmen sollte. Mit Event Sourcing verdrängt endlich Konstruktivismus den bisherigen Materialismus des immer noch dominierenden RDBMS/OO-Denkens.1 Und ich…

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Ralf Westphal

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…

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Ralf Westphal

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…

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