You are previewing Domain-Driven Design: Tackling Complexity in the Heart of Software.

Domain-Driven Design: Tackling Complexity in the Heart of Software

Cover of Domain-Driven Design: Tackling Complexity in the Heart of Software by Eric Evans Published by Addison-Wesley Professional
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One. Crunching Knowledge

A few years ago, I set out to design a specialized software tool for printed-circuit board (PCB) design. One catch: I didn’t know anything about electronic hardware. I had access to some PCB designers, of course, but they typically got my head spinning in three minutes. How was I going to understand enough to write this software? I certainly wasn’t going to become an electrical engineer before the delivery deadline!

We tried having the PCB designers tell me exactly what the software should do. Bad idea. They were great circuit designers, but their software ideas usually involved reading in an ASCII file, sorting it, writing it back out with some annotation, and producing a report. This was clearly not going to lead to ...

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