Project Management

Topics: Six Sigma, Control chart, Failure mode and effects analysis Pages: 27 (7689 words) Published: June 19, 2013
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Sample Green Belt Certification Examination Questions with Answers (Green Belt certification examinations assume that that the participant has successfully completed the Champion certification examination at the University of Miami. This section only presents questions beyond the Champion certification level. However, Green Belt certification examinations are cumulative in that they cover the material required for both Champion and Green Belt certification.) QUESTION: Provide a non-technical definition for “Six Sigma” management. Answer: It is an organizational initiative designed to create breakthrough improvements in manufacturing, service and administrative processes. For example, Motorola established a goal to reduce defects 10-fold with a 50% reduction in cycle time every 2 years. QUESTION: Define a process. Draw a picture. Answer: A process is the vehicle for transforming inputs into outputs, see figure below. Feedback loops are used to move data to appropriate points in the process for decision making purposes.

Inputs Manpower Services Materials / Goods Methods Environment

Process Transform inputs into outputs by creating time, place form value

Outputs Manpower Services Materials / Goods Methods Environment

Feedback Loops

QUESTION: Describe the three types of feedback loops. (None, Special only, Common and Special cause) Answer: • No feedback loop: A process without a feedback loop will deteriorate and decay due to entropy. • Special cause only feedback loop: A process in which all feedback is treated as special will exhibit a doubling or explosion in the variation of its output. • Special and common cause feedback loop: A process in which feedback is statistically recognized as common or special will experience improvement of its output.

Gitlow Levine A Course in Six Sigma Management4/29/2007

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QUESTION: Explain the origin of the “6” and “3.4” in Six Sigma management. Use a diagram that includes the Voice of the Customer and the Voice of the Process. Answer: Voice of Customer equals Voice of Process Voice of Customer equals Voice of Process - Process is stable and centered on nominal. - Process is stable. - 0.0 sigma shift in the mean results in 2,700 - 1.5 sigma shift in the mean results in DPMO. 66,807 DPMO.

Through the continuous process improvement, the variation of process is reduced. Thus, the relationship between Voice of Customer and Voice of Process moves to a better level, Voice of Process is half the Voice of Customer, that is --- the process improves from a 3sigma process to a 6-sigma process. Voice of Process is half Voice of Customer Voice of Process is half Voice of Customer - Process is stable and centered on nominal. - Process is stable. - 0.0 sigma shift in the mean results in 2 - 1.5 sigma shift in the mean results in 3.4 defects per billion opportunities. DPMO.

QUESTION: Describe the roles and responsibilities of a process owner. Answer: 1. A Process Owner has the authority to change a process. 2. A Process Owner should be identified and designated early in a Six Sigma project. 3. A Process Owner is responsible for managing and holding the gains for the improved process, and for improving and innovating the process in the future. 4. A Process Owner empowers people in the process. 5. A Process Owner works with the project team. (This can also be a champion role.) 6. A Process Owner coordinates team logistics. . (This can also be a MBB or BB role.) 7. A Process Owner negotiates resources for team. . (This can also be a champion role.) 8. A Process Owner links process and organizational objectives.

Gitlow Levine A Course in Six Sigma Management4/29/2007

3 A Process Owner understands their process’ capability and its relationship to the organization. 9. A Process Owner ensures that customer’s needs take priority. (This is also mainly the responsibility of the top executives of an organization.) 10. Process owner optimizes the entire process, not just...
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