Notes on architectural modelling.
Working out what a modelling tool for architects ought to be.
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What ISO 42010 says an architecture description is
ISO/IEC/IEEE 42010 is the international standard for describing architectures. Its core is one small diagram, twelve concepts and the lines between them. I rebuilt it as a model in EOModeller and walked through what it says, and why it's a useful lens for anyone who draws architecture.
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From model to app in an hour
I built a small web app, in about an hour, not based on a prompt, but a data model in EOModeller. I exported it as XMI, and handed it to Claude with a one-page spec. Why the model, not the prompt, was the part that mattered.
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The shape of an architectural artefact
Every architectural artefact lives in a two-dimensional space of formality and detail — and the work of architecture is moving through it. Why existing tools fight that movement, and what a quadrant-native tool looks like.
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Why create models?
Most architects can describe how they model in detail — the notation, the tool, the metamodel. Fewer can say why. Seven distinct reasons architects model, and the trap of building tools for only one of them.
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