Date Added: Dec 2011
The software industry is in switch over from craft work to engineering practice, but development, operational and maintenance outlays are still capricious and dearer. In the present scenario of software industry there are certain factors that very critical for the success of software. These days there are a few software engineering models that are very popular, V model and agile software development approaches are being commonly used. On the other hand, among the advanced software engineering approach is 'Cleanroom software engineering' that concentrates on developing zero defect software.