正解:B,D
A . Absolute reference: This is an incorrect answer, as it is not a requirement attribute, but a term used in spreadsheet software to refer to a cell address that does not change when copied or moved to another cell.
B . Ownership: This is a correct answer, as it is a requirement attribute that indicates who is responsible for the creation, approval, and maintenance of the requirement. Ownership helps to ensure the accountability, traceability, and quality of the requirement.
C . Requirements sponsor: This is an incorrect answer, as it is not a requirement attribute, but a role that provides the funding and support for the project or the solution. The requirements sponsor may or may not be the same person as the owner of the requirement.
D . Author of the requirement: This is a correct answer, as it is a requirement attribute that identifies the person who wrote the requirement. Authorship helps to provide the source and context of the requirement.