Introduction
Software reliability refers to the probability that software will perform its intended function without failure under specified conditions for a designated period. It is a critical dimension of overall software quality.
Reliable software improves users’ trust in a system. From businesses to government institutions, the quality of the software they provide reflects the care and responsibility they have toward their customers and citizens. Reliability also minimizes losses caused by downtime. Such losses can range from economic damage to risks involving human life.
Reliable software helps organizations achieve their broader goals. Only when a software system functions correctly and consistently can an organization provide the services it intends to deliver.
Pillars of Reliability






