What, Harness, How: The Three Layers of AIUP
One of the recurring questions I hear about Spec-Driven Development is this: where does the spec end and the implementation begin? The line is often blurry. Specs leak into class[...]
AI Writes Code. Engineers Build Software.
With Claude Code and similar tools, I do not write much code by hand anymore. The AI does it for me. And most of the time, the result is good. For a moment this looks like the end[...]
Why in Spec-Driven Development the Spec Must Be Readable for All Stakeholders
In Spec-Driven Development (SDD), the specification is at the center. It is not just a document for developers or architects. It is the shared foundation for everyone who works on[...]
How and Why to Trace Use Cases and Tests
When you build business software, the same question keeps coming back: why does this code exist? The honest answer is almost always: because some business person needed it. A[...]
Use-Case 2.0: The Forgotten Practice That Solves What User Stories Can’t
Many teams today treat user stories as the only way to capture requirements. But there is an older, proven technique that scales better and provides something user stories[...]
Why Spec-Driven Development Tools Fail in the Enterprise
The spec-driven development (SDD) movement is gaining momentum. Tools like Amazon Kiro, GitHub Spec Kit, and BMad Method promise to bring structure to AI-assisted coding. And they[...]
A Small App, a Complete Process: Demoing AI Unified Process with a Feedback App
When people hear about AI-assisted software development, they often imagine code generation first. I think that is the wrong place to start.
AI Tools for Developers Are Not Enough
Why are we putting so much energy into tools for the part of software development that is most likely to be automated? Why are we not building much more AI support for the rest of[...]
BMAD vs. Spec-Driven Development: Why AI Needs Better Specifications
AI is not only accelerating coding. It is shifting the center of gravity in software development. Implementation is becoming easier. Specification is becoming more important.[...]
AI Makes Coding Cheap. Requirements Are Now the Bottleneck
A recent article by Geoffrey Huntley argues that software development is becoming extremely fast and cheap because of AI. That observation is correct. Code that once took days[...]
A Chief Engineer’s Intuition: Why “Build Integrity In” Is Still the Standard for Excellence in 2026
In my article series, we have now journeyed quite a great deal through the tactical and strategic landscapes of lean software development. In my previous articles, we explored the[...]
Use Cases vs User Stories – Same Content, Different Outcome
In many discussions, I hear the statement: “Use Cases and User Stories can contain the same information.” At first glance, this sounds reasonable. Both describe requirements.[...]
