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Unformatted text preview: surement has infinite cost. Measurement needs to be
sufficient for purpose, at the lowest costs for that purpose.
Measurement processes can be ‘designed’ to fit a set of numeric qualities, costs, and constraints.
8. Use metrics to review specifications.
A very basic measure of technical specifications’ conformance to their applicable standards, is
the number of major defects per volume.
A defect is a deviation from a written official applicable standard (like ‘R1: All qualities shall
have a defined scale of measure.’). A major defect is a defect that might potentially cause
economic or technical damage at some point (for example something that would have to be
reworked before acceptable delivery). The conventional ‘volume’ I use is 300 non-commentary
words of text, a Logical Page. This is not critical, but some volume standard needs to be used to
normalize the information about defect density.
I usually use a process of sampling random but representative pages of specifications,
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This document was uploaded on 02/26/2014 for the course E 515 at University of Louisiana at Lafayette.
- Spring '13
- Systems Engineering