Abstract: A computer automated system for measuring software reliability is provided. The system comprises a data store including mean-time-between-failure and mean-time-to-repair metrics for applications and an analysis component. The analysis component determines a reliability index for an application and generates a report associating the reliability index with the application. The reliability index is determined based on dividing the mean-time-between-failure of the application by the mean-time-to-repair of the application. An embodiment of the computer automated system further includes a maintenance financial index that is used to evaluate the development plan, where the maintenance financial index is based on the product of the reliability index multiplied by a delivery rate metric. The delivery rate metric is proportional to a software size metric and inversely proportional to a software development effort metric.