NEED STATEMENT

Systems Engineering Glossary

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Information on Need Statement

The need statement is a concise statement of need describing the goals or objectives of the system development. The need is articulated in the User Requirements Document. A system must meet some defined need which must be clearly stated at the outset. The need statement is developed in conjunction with the key stakeholders and provides a single concise sentence that contains a word or phrase for every key aspect of the system. In that way, the need statement begins the hierarchical top-down analysis of system requirements.
     The need statement also serves as the ultimate test of the system’s fitness for purpose once it is introduced into service.


Other topics in our resources on Systems Engineering related to Need Statement include: 
 
  • Use Cases
  • Goals And Objectives
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  • Operational Environment
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  • Mission Profiles

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