What is a cause-effect diagram and how is it different from a flowchart?

• A. A cause-effect diagram maps root causes and their relationships to a problem; a flowchart maps the steps of a process; they serve different purposes but are complementary.
• B. They are the same.
• C. Cause-effect shows timelines; flowchart shows root causes.
• D. Flowchart shows root causes; cause-effect shows steps.

Answer: (A)

The question tests understanding of how a cause-and-effect diagram differs from a flowchart and how they fit together in problem solving. A cause-effect diagram (often a fishbone or Ishikawa diagram) focuses on identifying root causes of a problem and showing how different factors relate to the central issue. It groups potential causes into categories and maps their relationships to the effect to spotlight where improvements are needed. A flowchart, by contrast, maps the steps of a process in sequential order, illustrating the flow of activities, decisions, inputs, and outputs to show how the process operates.

Because they serve different purposes, they are complementary: the cause-and-effect diagram helps you surface and organize root causes, while the flowchart helps you understand or analyze the current process to see where those causes might be affecting steps or where changes could improve performance. The correct idea is that a cause-effect diagram maps root causes and their relationships to a problem, while a flowchart maps the steps of a process, and they serve different purposes but work well together.

Other options misstate the roles: they aren’t the same; cause-effect diagrams don’t show timelines, and flowcharts aren’t used to display root causes.