Analyze requirements to ensure they are necessary and sufficient.

As contractual requirements are defined, their relationship to customer requirements must be understood. In light of the operational concepts and scenarios, the contractual requirements are analyzed to determine whether they are necessary and sufficient to meet customer requirements. The analyzed requirements then provide the basis for more detailed and precise requirements throughout the project lifecycle.

One of the other actions is the determination of which key requirements will be used to track technical progress. For instance, the weight of a product or size of a software product may be monitored through development based on its risk.

Refer to the Acquisition Technical Management process area for more information about tracking technical progress and technical performance measures.

Typical Work Products

1.    Requirements defects reports

2.    Proposed requirements changes to resolve defects

3.    Key requirements

4.    Technical performance measures

Subpractices

1.    Analyze stakeholder needs, expectations, constraints, and external interfaces to remove conflicts and to organize into related subjects.

2.    Analyze requirements to determine whether they satisfy higher level requirements.

3.    Analyze requirements to ensure that they are complete, feasible, realizable, and verifiable.

4.    Analyze and propose the allocation of requirements to supplier deliverables.

5.    Identify key requirements that have a strong influence on cost, schedule, functionality, risk, or performance.

6.    Identify technical performance measures to be tracked during the acquisition.

Technical performance measures are precisely defined measures based on a product requirement, product capability, or some combination of requirements and/or capabilities. Technical performance measures are chosen to monitor requirements and capabilities that are considered key factors in a product’s performance. Data for technical performance measures are provided by the supplier as specified in the supplier agreement.

Refer to the Measurement and Analysis process area for more information about specifying measures.

7.    Analyze operational concepts and scenarios to refine customer needs, constraints, and interfaces and to discover new requirements.

This analysis may result in more detailed operational concepts and scenarios as well as support the derivation of new requirements.