What is a 'requirement traceability matrix' used for?

A requirement traceability matrix is a key tool used in business analysis and project management to document the relationships between requirements and various project artifacts. It serves as a comprehensive framework that links each requirement throughout its lifecycle from inception to implementation and testing. By establishing these connections, it ensures that all requirements are addressed, fulfilled, and verified against their intended outcomes.

The matrix typically includes details such as requirement identifiers, descriptions, related design elements, test cases, and statuses, allowing stakeholders and project teams to trace each requirement back to its origin and forward to the design and testing phases. This traceability is crucial for maintaining alignment with project goals and validating that all critical requirements are met, thereby reducing the risk of scope creep or overlooking essential features.

Additionally, it aids in impact analysis when changes occur by clearly showing how modifications to one requirement may affect others, ensuring a more controlled management process for requirements throughout the project lifecycle. Thus, the correct answer highlights the primary purpose of a requirement traceability matrix within the context of business analysis and project management practices.