Which of the following can be an effective tool during quality control to help determine the how the problem occurred?

Flowcharting is a quality management tool used to visually represent the sequence of steps, decision points, and workflow of a process. When a problem or defect is identified during quality control, a flowchart helps the team analyze the process step-by-step. By tracing the path of activities, the team can pinpoint the exact location in the sequence where the failure occurred, thereby understanding how the problem was generated. This makes it an effective tool for root cause analysis by illustrating the mechanics of the process failure.

A. Rework: Rework is the action taken to correct a nonconforming product or component; it is an outcome of quality control, not an analytical tool to find a cause.

C. Trend Analysis: This tool examines performance data over time to identify patterns or trends, but it does not explain the specific process steps that led to a problem.

D. Pareto Diagram: A Pareto diagram is a bar chart used to prioritize the most significant causes of problems (the "vital few"), but it does not illustrate the process sequence ("how").

1. Project Management Institute. (2017). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) (6th ed.). Section 8.1.2.4 Data Representation. Newtown Square

PA: Project Management Institute. The guide states that flowcharts "are used to show the sequence of steps that lead to a defect." This directly supports their use in determining how a problem occurred.

2. Project Management Institute. (2017). The Standard for Program Management (4th ed.). Appendix X3 Tools and Techniques. Newtown Square

PA: Project Management Institute. This standard lists flowcharts as a common quality tool used within program management

reinforcing its applicability in a PgMP context for analyzing processes and quality issues.

3. Tague

N. R. (2005). The quality toolbox (2nd ed.). ASQ Quality Press. In the chapter on "Flowchart

" it is described as a tool to "understand a process" and "identify problem areas and opportunities for process improvement" (p. 247)

which aligns with determining how a problem occurred within a process sequence.