Rationale: It should be accurate – in the sense of correct for the purpose. Inaccurate information is of little use for strategic, tactical or operational purposes. Authoritative means that the source of the information should be reliable. It must also be relevant to the user's needs. Information that is not needed for a decision should be omitted, no matter how 'interesting' it might be. If the information is comprehensive, it may be more wide ranging than it needs to be. It needs to be complete i.e. include everything that is needed.