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Software Process Improvement and Its Impact on Industry

Donna L. Johnson and Judith G. Brodman


A recent trend in the computer field has been the recognition of software development as a process that can be documented, controlled, and improved. Industry, in general, has seen the introduction of process improvement models, such as TQM and ISO 9000, that provide guidelines for improving the product development process in order to enhance product quality and increase customer satisfaction. The software industry has not been immune to the improvement trend, and several models specific to the software process have been introduced in the US and abroad. One of these models is the Software Engineering Institutes (SEI) Capability Maturity ModelSM for Software, or CMMSM. The CMM is now being used worldwide by both industry and government agencies and has become a de-factor standard in the software engineering community.

Ms. Johnson and Ms. Brodman will briefly discuss the CMM and then present results of the research that they performed on organizations using the CMM as a model for their software process improvement efforts. The organizations with which they worked included software organizations that were small of had small projects and that were encountering difficulties applying the CMM because of their size. Ms. Johnson and Ms. Brodman will discuss both the issues that these small groups face when using the CMM and the tailoring that they performed on the CMM to meet the needs of these groups.

Ms. Johnson and Ms. Brodman will also discuss their investigation into the return-on-investment (ROI) for software process improvements based on the CMM. Little data has been published on the returns for the significant investments that software organizations are making in their improvement programs. Ms. Johnson and Ms. Brodman not only uncovered data that exists on the benefits of software process improvement, but they also characterized process improvement trends that provide valuable guidance to organizations initiating improvement programs.




Background


Ms. Johnson and Ms. Brodman work with software organizations that are experiencing problems introducing software process improvement initiatives into their organizations. Their unique expertise was gained through their research, performed for the US Air Force, on the return-on-investment (ROI) from software process improvement initiatives and on the issues facing organizations in their improvement efforts.

Ms. Johnson and Ms. Brodman are in the process of publishing The LOGOS Tailored CMM and are working on two additional books which address documentation shortcuts and process improvement aids. They have published articles and presented at conferences world-wide on small organization and small project software process improvement issues and on the ROI for CMM-based process improvement.

Ms. Johnson and Ms. Brodman are President and CEO, respectively, of LOGOS International, Inc. Ms. Johnson is Chair of the Boston SPIN and Ms. Brodman is the author of the Dear SPIN Doctor column in the Boston SPIN Newsletter. Ms. Johnson has a B.A. in Mathematics and an M.S. in Applied Mathematics; Ms. Brodman has a B.S. in Mathematics and an M.S. in Computer Engineering.





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