Which document best provides the boundaries for product development?

 The requirements baseline is a document that contains the approved and validated requirements that are used as the basis for developing the solution. The requirements baseline defines the scope and boundaries of the product development, as it specifies what the product must do, what features and functions it must have, and what criteria it must meet to satisfy the stakeholders’ needs and expectations. The requirements baseline also serves as a reference point for measuring the progress and performance of the product development, as well as for managing changes and resolving issues. The requirements baseline is established after the requirements have been elicited, analyzed, prioritized, and verified by the business analyst and the stakeholders, and it is formally approved by the project sponsor or other authorized person. References: PMI Professional in Business Analysis (PMI-PBA)® Examination Content Outline1, page 18; Business Analysis for Practitioners: A Practice Guide2, page 92.