Common Problems

• Incompleteness

  • customer may be unavailable or inaccessible
  • customer asks for too little
  • customer doesn’t think of everything
  • the world changes
  • (sometimes incompleteness is okay)

• Inconsistency

  • customer may be a group that disagrees
  • different people may negotiate different parts

• Ambiguity

  • customer may be a group where noone sees the whole picture
  • difficult to spot ambiguity in large, complex applications

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