Software-design
August 28, 2024
Software-Engineering
August 28, 2024
Software-design
August 28, 2024
Software-Engineering
August 28, 2024

Software-Engineering

Question 130
What is the defect rate of Six sigma?
A
1.0 defect per million lines of code
B
1.4 defect per million lines of code
C
3.0 defect per million lines of code
D
3.4 defect per million lines of code
Question 130 Explanation: 
→ The term “six sigma” comes from statistics and is used in statistical quality control, which evaluates process capability. Originally, it referred to the ability of manufacturing processes to produce a very high proportion of output within specification.
→ Processes that operate with “six sigma quality” over the short term are assumed to produce long-term defect levels below 3.4 defects per million opportunities (DPMO). The 3.4 dpmo is based on a “shift” of ± 1.5 sigma explained by Dr. Mikel J. Harry.
→ This figure is based on the tolerance in the height of a stack of discs. Six Sigma’s implicit goal is to improve all processes, but not to the 3.4 DPMO level necessarily.
→ Organizations need to determine an appropriate sigma level for each of their most important processes and strive to achieve these. As a result of this goal, it is incumbent on management of the organization to prioritize areas of improvement.
Correct Answer: D
Question 130 Explanation: 
→ The term “six sigma” comes from statistics and is used in statistical quality control, which evaluates process capability. Originally, it referred to the ability of manufacturing processes to produce a very high proportion of output within specification.
→ Processes that operate with “six sigma quality” over the short term are assumed to produce long-term defect levels below 3.4 defects per million opportunities (DPMO). The 3.4 dpmo is based on a “shift” of ± 1.5 sigma explained by Dr. Mikel J. Harry.
→ This figure is based on the tolerance in the height of a stack of discs. Six Sigma’s implicit goal is to improve all processes, but not to the 3.4 DPMO level necessarily.
→ Organizations need to determine an appropriate sigma level for each of their most important processes and strive to achieve these. As a result of this goal, it is incumbent on management of the organization to prioritize areas of improvement.

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