No methodology is inherently "best." The competent BA uses a contingency framework based on three variables:

Master Your Toolkit: The Essential Guide to Business Analyst Methodologies

In the dynamic world of business analysis, the methodology chosen to execute a project is just as critical as the technical skills required to document requirements. A methodology provides a structured framework—a set of principles, processes, and practices—that guides Business Analysts (BAs) from the initial identification of a business need to the final implementation of a solution.