Recovery Oriented Software Reliability Model with Fault Fixing and Treatment Processes

摘要

The objective of the work is to propose a recovery oriented reliability (RoR) model for the software reliability enhancement through fix and treatment strategy. The existing reliability enhancement models are emphasizing various redundancy techniques both in hardware and software without focusing a formal way of recovery time minimization from the affected or degraded states in the software systems. The recovery oriented computing is based not only on the severity of the damage caused by the uncertain stimuli or random events on system components, third party software and middleware but also on the duration of such events caused that damage. A Replication Enabled Collaborative Optimal Recovery (RECOVER) model is proposed in which the correct and timely activation of multiple recovery mechanisms through time and data replication techniques are used for the enhancement of software reliability. The functionality might have been affected by various direct or hidden faults due to the frequent changes in operating environment of the application software under consideration.