Quality Management & Performance Metrics Flashcards

A process owner notices that defect rates fluctuate between 2% and 8% with no identifiable pattern. This is most likely an example of:

Answer: Common cause variation

Random fluctuation within a stable range without identifiable triggers indicates common cause variation inherent to the process.

Which quality cost category includes expenses for inspecting incoming raw materials from suppliers?

Answer: Appraisal costs

Appraisal costs cover activities like inspection, testing, and auditing performed to detect defects before products reach customers.

A CPP practitioner wants to measure how efficiently a process converts inputs to outputs. Which metric is most appropriate?

Answer: Throughput efficiency

Throughput efficiency measures value-added time as a percentage of total cycle time, directly quantifying input-to-output conversion efficiency.

The PDCA cycle was originally developed by which quality pioneer?

Answer: Walter Shewhart

Walter Shewhart developed the PDCA (Plan-Do-Check-Act) cycle, which was later popularized by W. Edwards Deming.

A process produces 950 acceptable units out of 1,000. The First Pass Yield (FPY) is:

Answer: 95%

FPY = (Units passing without rework / Total units started) × 100 = (950/1000) × 100 = 95%.

Which tool is most effective for identifying the root cause of a quality problem by systematically exploring cause-and-effect relationships?

Answer: Ishikawa diagram

The Ishikawa (fishbone) diagram maps cause-and-effect relationships across categories like people, process, equipment, and materials.

In the context of quality management, 'Voice of the Customer' (VOC) data is primarily used to:

Answer: Translate customer needs into process requirements

VOC data captures customer expectations and requirements, which are then translated into measurable process and product specifications.