Final answer:
Documentation review is the data collection method in the systems analysis phase of the SDLC that does not require user feedback, relying on pre-existing documents instead.
Step-by-step explanation:
Within the systems analysis phase of the SDLC, the data collection method that does not involve any feedback from the users of the IT system is A. Documentation review. This method involves analyzing existing documents and records to gather information about the system's requirements and functionalities, without requiring direct interaction with end-users. Unlike interviews, focus groups, or questionnaires, where users provide direct feedback, documentation review relies entirely on pre-existing material.