sixPAINLESS FUNCTIONAL SPECIFICATIONSPART 2: WHAT'S A SPEC?
TUESDAY, OCTOBER 3, 2000
I've been writing about functional specifications, not technical specifications. People get these mixed up. I don't know if there's any standard terminology, but here's what I mean when I use these terms:
A functional specification describes how a product will work entirely from the user's perspective. It doesn't care how the thing is implemented. It talks about features. It specifies screens, menus, dialogs, and so on.
A technical specification describes the internal implementation of the program. It talks about data structures, relational database models, choice of programming languages and tools, algorithms, etc.
When you design a product, inside and out, ...