A proposed software reliability model for distributed systems

Abstract EN

Distributed systems are being developed in the context of the client-server architecture.

Client-server architectures dominate the landscape of computer-based systems.

Client-server systems are developed using the classical software engineering activities.

Reusability is widely believed to be a key direction to improving software development productivity and quality.

In this paper, an attempt has been made to model the software reliability growth phenomenon in a distributed development environment.

The proposed model is based on the assumption that the software system is composed of a finite number of reused and newly developed modules.

The reused modules do not consider the effect of the impact (severity) of the fault-type (complexity) on the software reliability growth phenomenon (i.e., the growth is uniform).

The newly developed modules do consider the effect of the impact of the fault-type on the software reliability growth phenomenon.

Accordingly, the fault removal process is modeled separately and the total fault removal phenomenon is the sum of the fault removal process of all.

Actual software reliability data have been used to demonstrate the proposed model.