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Software Reliability Classes (SRCs) have been developed in order to compare the field reliability performance of a sequence of software releases for a cluster of similar hardware products. A specific cluster is characterized by the type of market the hardware supports, and the software releases for the cluster have similar functionality, complexity, size, and customer expectations. SRCs are a normalized...
Software Software Reliability Classes (SRCs) have beendeveloped in order to compare the field reliabilityperformance of a sequence of software releases for a clusterof similar hardware products. A specific cluster ischaracterized by the type of market the hardware supports,and the software releases for the cluster have similarfunctionality, complexity, size, and customer expectations
At Cisco, our primary measure of field reliability is Software Defects Per Million Hours (SWDPMH), and this metric is goaled on a yearly basis for over 120 product families. A key reason SWDPMH is considered to be of critical importance is that we see high correlation between SWDPMH and Software Customer Satisfaction (SW CSAT) over the wide spectrum of products and feature releases. Therefore, it...
The objective of the work described is to accurately predict, as early as possible in the software lifecycle, how reliably a new software release will behave in the field. The initiative is based on a set of innovative mathematical models that have consistently shown a high correlation between key in-process metrics and our primary customer experience metric, SWDPMH (Software Defects per Million Hours...
Some useful metrics (such as SWDPMH - software defects per million hours of customer usage per month) often have values that vary by several orders of magnitude, depending on the resident hardware platform, for a single software feature release. This is because different platforms use different parts of the code, have widely different performance characteristics, support widely varying numbers of...
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