Some Observations on Early Software Reliability of Object Oriented System

Object-oriented approach is becoming very popular in software development community as an alternative to traditional approach i.e. structured analysis & design methodologies due to obvious reasons. This approach has become de facto standard of software development organization. As we know, software reliability is one of the important dynamic quality factors in overall quality models proposed in the literature. Several guidelines are available in literature that suggest various "do's" and "don'ts" to produce an "easy to maintain" and "reliable" system. Metrics to measure software reliability do exist and can be used starting in requirements phase to software design phase. In this paper we propose models that capture such ideas and prepare background for development of metrics for assessment of early reliability of software.