CQIA Process Improvement 5 — Questions and Answers
Question 1: Which of the following describes a 'process owner' in a quality improvement effort?
- The customer who receives the final product
- The person accountable for the performance and improvement of a specific process (Correct answer)
- The quality auditor who reviews process outputs
- The executive sponsor funding the project
Correct answer: The person accountable for the performance and improvement of a specific process
A process owner is the individual accountable for the end-to-end performance of a specific process, including its improvement.
Question 2: A team discovers that a process step adds cost but no value from the customer's perspective. This step is best categorized as:
- Value-added
- Non-value-added but necessary
- Non-value-added and unnecessary (Correct answer)
- A quality checkpoint
Correct answer: Non-value-added and unnecessary
Steps that add cost without adding customer value and are not required by regulation or business necessity are pure waste to be eliminated.
Question 3: Which phase of PDCA (Plan-Do-Check-Act) involves evaluating whether the implemented change achieved the desired results?
- Plan
- Do
- Check (Correct answer)
- Act
Correct answer: Check
The 'Check' phase compares results against the planned objectives to determine if the change was effective.
Question 4: A scatter diagram shows a strong positive correlation between two variables. This means:
- One variable causes the other to change
- As one variable increases, the other tends to increase (Correct answer)
- The variables are unrelated
- The correlation proves causation
Correct answer: As one variable increases, the other tends to increase
A positive correlation means both variables tend to increase together, though correlation alone does not establish causation.
Question 5: Which of the following is the primary purpose of a project charter in a quality improvement project?
- To document all process steps in detail
- To formally define the project scope, goals, team, and timeline (Correct answer)
- To list all potential risks and their mitigation plans
- To record defect data collected during the Measure phase
Correct answer: To formally define the project scope, goals, team, and timeline
A project charter formally authorizes the project and defines its scope, objectives, team members, and expected timeline.
Question 6: What is 'takt time' in lean manufacturing?
- The fastest possible machine cycle time
- The available production time divided by customer demand rate (Correct answer)
- The time required to set up a machine between runs
- The average time a unit spends in the queue
Correct answer: The available production time divided by customer demand rate
Takt time is the available production time divided by customer demand, setting the pace at which products must be produced to meet demand.
Question 7: A quality improvement team is implementing a change and wants to ensure the gains are maintained. Which tool is most useful for this purpose?
- Fishbone diagram
- Control chart (Correct answer)
- Affinity diagram
- SIPOC diagram
Correct answer: Control chart
Control charts monitor process performance over time to detect special causes and ensure gains are sustained after improvements.
CQIA Process Improvement 5
Which of the following describes a 'process owner' in a quality improvement effort?