Which best describes the purpose of a Functional Flow Block Diagram (FFBD)?

A Functional Flow Block Diagram (FFBD) is primarily used to outline functional activities and sequences within a system. It provides a clear visual representation of the functions required to achieve specific objectives, showing how they interact and the order in which they must occur. This helps engineers and stakeholders understand the logical flow of activities, identify dependencies, and ensure that all necessary functions are accounted for in the system design and implementation.

By focusing on the flow of functions, the FFBD aids in system analysis, design, and verification, making it easier to manage complexities and enhance communication among team members. This structured approach is essential for systems engineering, where understanding the sequence and relationship of functions is crucial to facilitating successful project outcomes.