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Application of SPC in CMM level 3 Companies to Improve Process Capability with Respect to Effort Deviation and Schedule Deviation

R Ravichandran, Dr M Punithavalli, V. Vijayalakshmi


This study probed into improving the process capability in defined level software companies to achieve high process maturity with respect to effort deviation and schedule deviation using Statistical Process Control (SPC) technique. Using the results of research through literature review, collection of data from software industry this study would be identified the relative importance of SPC, software quality and software process. SPC can be applied in defined level companies to improve the process maturity [1]. A case study is conducted in the present study to obtain practical evidence on the validity of the reasoning about statistical process control in achieving high level process maturity at defined level companies. The real time data were collected for effort deviation and schedule deviation for the different phases of the project life cycle considering two different languages namely VB.NET and ASP.NET.Projects were grouped language wise for analysis and the control limits were constructed and defined for effort deviation and schedule deviation separately. The applicability of SPC through control charts in improving the process capability with respect to effort deviation and schedule deviation have been validated considering projects done in two different languages.


Statistical Process Control (SPC), Effort Deviation, Schedule Deviation, Process Maturity

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