Inspections should NOT take place at which of the following times?

• A. After costly or irreversible processes.
• B. During the step-by-step production process.
• C. At your supplier's plant while the supplier is producing.
• D. At your facility upon receipt of goods from your supplier.

Answer: (A)

Inspections should not take place after costly or irreversible processes because, at this point, any defects that might be discovered could lead to significant waste, financial loss, and operational inefficiencies. If the inspection occurs after a process that cannot be undone—such as a machining process that alters the material permanently—then mistakes or defects cannot be corrected without incurring additional costs. Hence, it is much more effective to conduct inspections before reaching this stage, allowing for corrections to be made without incurring greater consequences.

In contrast, conducting inspections during the step-by-step production process, at the supplier's plant while the supplier is producing, or upon receipt of goods from the supplier are all strategic points for inspections. These points are designed to catch defects early in the process, which can help maintain quality and reduce costs associated with rework or scrap. By inspecting at these earlier stages, the operation can ensure that quality standards are met without risking the investment made in processing.