Process Analysis & Improvement Techniques Flashcards
7 cards from real CPP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Process Analysis & Improvement Techniques flashcards as text
A team discovers that 80% of customer complaints stem from 3 out of 20 identified defect types. Which tool best supports this finding?
Answer: Pareto chart
A Pareto chart visualizes the 80/20 rule by ranking defect types by frequency, helping teams focus on the vital few causes.
Which improvement methodology is most appropriate when a process does not yet exist and needs to be designed from scratch to meet Six Sigma standards?
Answer: DMADV (DFSS)
DMADV (Define, Measure, Analyze, Design, Verify), also known as Design for Six Sigma (DFSS), is used when creating new processes or products.
In process improvement, 'cycle time' is best defined as:
Answer: The total elapsed time to complete one unit through the entire process
Cycle time measures the total elapsed time from the start to the completion of one unit through a process, including both active and wait time.
Which type of control chart is most appropriate for monitoring the proportion of defective items in a sample when the sample size varies?
Answer: p-chart
The p-chart monitors the proportion (fraction) of nonconforming items and accommodates variable sample sizes.
A 5 Why analysis is best described as:
Answer: An iterative questioning method to drill down to the root cause of a problem
The 5 Why technique repeatedly asks 'why' to peel back layers of symptoms until the true root cause of a problem is identified.
Force field analysis is used in process improvement primarily to:
Answer: Evaluate driving and restraining forces affecting a proposed change
Force field analysis identifies forces that support or resist a change, helping teams develop strategies to strengthen drivers and reduce barriers.
Which lean waste category best describes unnecessary movement of people within a work area that does not add value to the product or service?
Answer: Motion
Motion waste refers to unnecessary physical movement of people (reaching, walking, bending), while transportation waste refers to the movement of materials.