In the context of business analysis, the Requirements Analysis and Design Definition knowledge area describes the work involved in structuring and formulating the requirements information elicited during requirements elicitation activities.
Requirements and designs are important parts of an initiative where the business analyst has direct influence over supporting and guiding the changes that will be introduced. The level of detail of requirements and designs can vary depending on the purpose and the audience that will consume this information. It is imperative for the business analyst to model and captures the needs, requirements, and designs in an optimal way. This ensures effective communication of the required changes or solutions of the initiative to the appropriate stakeholders: