MAINTAINABILITY EVALUATION MODEL FOR OBJECT ORIENTED SOFTWARE

Maintainability is a key factor of software quality models as mentioned in ISO 9126 and by other researchers. Maintainability evaluation at early phase of development life cycle like the design phase is preferred as it assists the software developers to improve their design before the start of actual coding. This in turn decreases the maintenance cost. This paper proposes a Maintainability Evaluation Model (MMOOD) that works at the design phase in the life cycle of software development. The proposed model evaluates maintainability in terms of its key contributor's viz. Changeability and Stability. The experimental validation of the developed maintainability evaluation model was done using industrial software projects. The proposed model was also compared with the existing models and the results prove that MMOOD evaluates maintainability in a better way.