Prediction of defect susceptibility in object Oriented Software

Developing reliable software at low cost is an objective for any software developer. Software errors are removed during the various review and test phases in the development lifecycle. Software is modified to eliminate these errors. Changes are implemented during the maintenance phases also. These software changes and fixes may introduce new errors and can cause defect propagation in different dependent modules. The present study addresses this aspect of software defects. An attempt is made to identify the portions of software having a higher probability of defect proneness and quantify the same through defect propagation factor. This will help the testers to concentrate their testing efforts more on the defect prone modules after every bug fixing.