Emerald: software metrics and models on the desktop

As software becomes more and more sophisticated, industry has begun to place a premium on software reliability. The telecommunications industry is no exception. Consequently software reliability is a strategic business weapon in an increasingly competitive marketplace. In response to these concerns, BNR, Nortel, and Bell Canada developed the Enhanced Measurement for Early Risk Assessment of Latent Defects (Emerald), a decision support system designed to improve telecommunications software reliability. Emerald efficiently integrates software measurements, quality models, and delivery of results to the desktop of software developers. We have found that Emerald not only improves software reliability, but also facilitates the accurate correction of field problems. Our experiences developing Emerald have also taught us some valuable lessons about the implementation and adoption of this type of software tool.