Improving the Quality of Software by Refactoring

Software code management has become another key skill required by software architects and software developers. Size of software increases with increase in count of features in software. Code refactoring is process of reducing code maintenance cost. It is achieved by many different techniques like extract, move methods, fields or classes in code. In this research we focused on improving the maintainability of the code by looking into the different refactoring techniques and improving upon them. We proposed an algorithm to improve the refactoring process which results in higher maintainability. To look into the validity of our proposed algorithm, we have used Junit and reffinder to analyse the code and generate the result metrics. We have observed the effectiveness of our work by comparing the different code maintainability indexes generated by the tool. In our research we have examined four releases of the software project for code refactoring and maintainability. Adding some extra features and using enhanced refactoring techniques measuring the code metrics and comparing the results of current releases with the previous releases.