Global specification is detailed description of the product and its features. In order to make the document understandable and useful you must follow these rules:

• Keep documentation:
  • and other artifacts in such ways that they are as easy as possible to manage
  • up to date
  • synchronized with work breakdown structure
  • with simple structure

• Check regularly for incorrectly specified components.
  

• Analyze what have to be added and what have to be described more precisely.