Guiding reengineering with the operational profile

Results of applying software reliability engineering (SRE) processes and tools on two teleconference support systems are documented. Beginning with the initial evaluation of SRE technology for AT&T´s TeleConference Service Development in 1992, this presentation covers the eventual use of SRE in many phases of software development for two separate systems. SRE provided a gauge by which quality efforts could be measured. Ramp up time and costs, as well as both successes and failures in the implementation of SRE are discussed. Next, presentation of preliminary findings regarding the use of SRE during the analysis, design, and integration testing phases of a client/server conferencing system are discussed. Reuse of an operational profile and SRE tools to guide design on a new platform architecture is explained. Lastly, a discussion of the appropriateness of SRE methods for both traditional functional decomposition techniques and object-oriented analysis and design is offered