They don't really as once the spec gets detailed enough it becomes so large and unwieldy that nobody with any actual power reads the things. An executive at a

They don't really as once the spec gets detailed enough it becomes so large and unwieldy that nobody with any actual power reads the things. An executive at a large company once told me about something where a spec had been written and reviewed by all relevant stakeholders: "That may be what I asked for, but its not what I want."