The customer generated a design specification for a new product.

A requirements baseline is a set of approved requirements that serves as the basis for further development and validation. A requirements baseline approval form is a document that records the formal acceptance of the requirements baseline by the customer and other stakeholders. Creating a requirements baseline approval form for the customer to review and approve is the best action to take to establish an approved requirements baseline with the customer. The other actions are not sufficient or appropriate for this purpose. A requirements traceability matrix is a tool that links the requirements to their sources, objectives, and deliverables, but it does not record the approval of the requirements. Requesting that the customer create a baseline of the requirements in the contract specification is not a proactive or collaborative approach. Performing a variance analysis on the design specification and reporting the results to the customer is not relevant to establishing an approved requirements baseline. References: PMI-PBA® Examination Content Outline, page 13; PMI-PBA® Reference List, page 1, BABOK® Guide v3, page 39.