October 2007
Beginner to intermediate
480 pages
14h 16m
English
Content preview from The Practical Guide to Defect Prevention
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Identifying the Causes of Poor Downstream Quality
To improve quality upstream, you need to know the root causes of poor quality downstream. The Five Whys[2] process is one method you can use to examine your current culture, processes, and tools. One axis of questioning is the following:
[2] See Chapter 11, “Root Cause Analysis.”
| 1. | Why are there defects that require redesign?
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| 2. | Why are scenarios missing, incomplete, or not well understood?
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| 3. | Why were they not known at design time?
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| 4. | Why did design and implementation start early?
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