The field of software engineering concern with designing, developing, maintaining and modifying software. There are numerous types of data available in software engineering such as graphs, text, facts and figures. Meaningful information can be exacted from this complex data using well established data mining techniques such as association, classification, clustering, etc. By uncovering hidden patterns using data mining software engineering data is made actionable. There are various goals in software engineering such as optimization, documentation, cost estimation, etc.