Identifying the impact of defects among the defect types in Software development projects

Defects are part of any process irrespective of people, domain, technology and the life cycle. In Software development that involves 100 percent human resource defects are common in nature. There could be certain amount of defect types found during the life cycle of a project and the defects could come during maintenance. In this paper, a methodology is proposed to identify the most impacting defect types to focus on the possible X factors which will impact the output variable. Also to identify the causes for the impacting defect types based on which the recommendations can be made to reduce the overall defects and there by deliver defect free product on schedule. Grouping of the defects is done based on the Tukey Method and Fisher Test.