For the purposes of the BABOK® Guide, the following classification schema describes requirements

The purpose of Plan Stakeholder Engagement is to plan an approach for establishing and maintaining effective working relationships with the stakeholders.

The purpose of Plan Business Analysis Information Management is to develop an approach for how business analysis information will be stored and accessed.

The purpose of Prepare for Elicitation is to understand the scope of the elicitation activity, select appropriate techniques, and plan for (or procure) appropriate supporting materials and

The purpose of Conduct Elicitation is to draw out, explore, and identify information relevant to the change.

The purpose of Communicate Business Analysis Information is to ensure stakeholders have a shared understanding of business analysis information.

The purpose of Verify Requirements is to ensure that requirements and designs specifications and models meet quality standards and are usable for the purpose they serve.

The purpose of Define Requirements Architecture is to ensure that the requirements collectively support one another to fully achieve the objectives.

The purpose of Analyze Performance Measures is to provide insights into the performance of a solution in relation to the value it brings.

The purpose of Assess Enterprise Limitations is to determine how factors external to the solution are restricting value realization.