Gathering and validating requirements

None of the above can be considered complete until consistency between the two has been achieved, as demonstrated by traceability, for which a number of iterations may be needed.

The purpose of the Stakeholder Needs and Requirements definition activities are to elicit a set of clear and concise needs related to a new or changed mission for an enterprise (see mission analysis (MA) for information relevant to identifying and defining the mission or operation), and to transform these stakeholder needs into verifiable stakeholder requirements.

Stakeholders may well begin with desires, and expectations that may contain vague, ambiguous statements that are difficult to use for SE activities.

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co.

This means that an initial context of use of the new or modified mission, operation, or capability has already been characterized (see Business or Mission Analysis).

System requirements are considered in detail during system definition.

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