Document analysis is a technique used to elicit business analysis information by reviewing existing organizational assets and materials such as business plans, contracts, audit reports, regulatory guidelines, and system documentation. It is particularly useful in understanding the current state, identifying requirements, business rules, and constraints, and preparing for stakeholder interviews or workshops.

This method provides a baseline of information that can be validated or expanded upon during other elicitation activities.

BABOK Guide v3 -- Section 10.14: Document Analysis:

''Document analysis involves reviewing existing documentation and materials to elicit requirements relevant to the change. It helps identify business rules, processes, and data relevant to current systems.''