Joel on Software is a valuable site for software developers. A former developer at Microsoft who now runs his own software company (Fog Creek Software), Joel Spolsky writes about software development in a common-sense manner. Periodically, I'll peruse the archive to read some of the older articles, even those I've read before. Today I'm reading (again) his series on Painless Functional Specifications: Part 1 — Why Bother Part 2 — What's a Spec? Part 3 — But… How? Part 4 — Tips