Improving inspection efficiency by reducing efforts with inspection team size and inspection meeting

Abstract

Inspection is a labor-intensive work due to manual procedure done by people without any automation. People first arrange plans of inspection, prepare it, detect defects in a software and then finally repair the errors. To benefit from inspection, they must pay the price. It is said that you could do an inspection with just pen and paper; however, you must pay your time and efforts. It is said the less effort you put in for the same result of inspection measures the effectiveness. Human labor is the most costly part of inspection. If an inspection team adds an extra inspector into the team but only achieves the same quality in products, team has overpaid its price for only the same result. Moreover, if the team does not find more defects during an inspection meeting, they pay should be researched and optimized. In this thesis, we study how to accomplish economical inspection. It is focused on inspection team size and usefulness of inspection meeting because those are the two factors that mostly influence labor intensive inspection efforts. For this research, we analyze the real data from an actual project in South Korea, named Real Estate Registration System of Supreme Court of Korea. We also included inspection education data for this organization. The data had been accumulated for more than ten years throughout developing, maintaining, and upgrading phases. The development organization started using inspection process for its products and had accumulated inspection data from 2002 to 2004. Using this three years data, in this thesis we do the followings: First, we show that the inspection process is effective, as Fagan and many other researchers insist by showing the number of detected defects among present defects. Second, we show that inspection efficiency is related to the inspection team size. If a large team size doesn``t achieve better cost efficiency result, we should find an optimal inspection team size for this organization. Third, the efficiency...