Kategorien: Alle - review - failure - prevention

von Alejandro Garcia Vor 14 Jahren

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PSP Quality Measures

The document outlines various quality measures and control parameters within the Personal Software Process (PSP). It discusses the concept of yield, which refers to the percentage of defects injected before a phase that were found before that phase, emphasizing the importance of review rates as a crucial factor in improving yield.

PSP Quality Measures

PSP Quality Measures

COQ

A/FR = Appraisal_coq / Failue_COQ
la meta es que sea 2. Dedicarle el doble a Appraisal
Appraisal
Costs are the codest of inspecting for defects.

In PSP: design and code revie

defect prevention
Identificar y resolver causas
failure
Tiempo de compilacion y pruebas

PSP: it is compile and thes time

Defect Removal Leverage

DRL(phase/UT) = (defects/hour for phase_X) / (defects / hour for unit_test)
DRL(phase/UT) is the DRL for phase X with respect to unit test.
the usual base is UT
defects removed per hour by a process step

Yield

PSP review rates
doucments: 4 pags / hour
200 LoC/ hour
Potential Control Parameters
review rate is the most useful to improve Yield
defects found per size unit
defects found per hour
Ex. size units reviewed / hour
Yield (proceso)
Without a name 'process yield' = phase yield beforo compile and test
Process Yield is the % of defects injected before a phas that were found *before* that phase
Yield (for phase)
Defects found / (Defects_found + not_found)