ITPEC IP October 2025 Question 52

To consider where and what kind of problem is likely to occur in the work processes — a flowchart shows the steps of a process in order, so each step can be examined for what could go wrong.

A flowchart draws each task, decision and hand-over of the development process as boxes and arrows. Following it step by step shows where defects can enter (an input that is not checked, a hand-over without review, a loop that can be skipped), so the quality controls can be placed there. It is one of the QC tools, each of which answers a different question.

Answer (a)

Why not others:

• •(b) — judging whether a measured value, such as the usage rate, stays within the expected range over time is done with a control chart and its limit lines
• •(c) — arranging the latent causes behind a major problem as branches is a cause and effect diagram (fishbone diagram)
• •(d) — counting problems by cause and sorting them in descending order to tackle the biggest causes first is a Pareto chart

Key rule: Pick the QC tool by the question it answers: a flowchart shows where in a process problems can arise, a control chart whether a process stays within limits, a cause and effect diagram why a problem happens, and a Pareto chart which causes matter most.

Corporate Activities · AI-written, may contain errors