SRGM
Software Reliability Growth Model
NOTICE Copyright 2019 The MITRE Corporation. All Rights Reserved. This technical data was produced for the U. S. Government under Contract No. FA8702-18-C-0001, and is subject to the Rights in Technical Data-Noncommercial Items Clause DFARS 252.227-7013 (JUN 2013) Approved for Public Release; Distribution Unlimited. Public Release Case Number 19-0034
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Licensing
Apache 2.0
Description
the purpose of this R Script is two-fold
- using the JIRA export evaluate a Mean Time between Fault(failure) - MTBF and Mean Time to Fix Code(Repair) - MTTR
these values are used for determining contractor obligations on delivering code and for calculating A sub Zero (A0)
further effort is required to tweak these algorithms,but whatever the vaule, this code gives consistency to monthly reports
- the MTTR is the summary statistics of the data, coerced into a 50 bin histogram of the number of days between created and closed, created using data since inception
- the MTBF is a probability density function which calculates a cummulative value for the last 52 weeks, the density is the (number of defects per work week) / (hours per work week)
- Manipulate the JIRA export data to a form acceptable by the SFRAT, https://sasdlc.org/lab/projects/srt.html, https://github.com/LanceFiondella/srt.core