You work as a systems engineer for BlueWell Inc. You are working on translating system requirements into detailed function criteria. Which of the following diagrams will help you to show all of the fu

Question

Options

• AActivity diagram
• BFunctional flow block diagram (FFBD)
• CFunctional hierarchy diagram
• DTimeline analysis diagram

• B
  7% (2)
• C
  90% (27)
• D
  3% (1)

Explanation

A Functional Hierarchy Diagram is the correct tool here because it specifically organizes all functional requirements into a tree-like hierarchical structure, visually grouping related functions under parent functions - giving you the complete picture of what the system must do and how those requirements are organized together in a single view.

Why the distractors are wrong:

• A. Activity diagram - shows the flow of actions/behavior over time (how a process executes), not the grouping of requirements.
• B. FFBD - shows the sequence and logic of functions (what happens in what order), not their hierarchical grouping.
• D. Timeline analysis diagram - used for scheduling and time-phased planning, completely unrelated to organizing function requirements.

Memory tip: Think "hierarchy = grouping." If the question asks about organizing or grouping requirements into categories, the word hierarchy signals a top-down tree structure - exactly what you need to display all requirements and their parent-child relationships at once. When you see "groupings," go with the diagram that has that tree shape.

No community discussion yet for this question.