Abstract:
Product reliability testing is an essential activity in the product development process before launching the commercial production. Manufacturer must guarantee their products in term of safety, quality, performance, and reliability. This study focuses on the reliability testing process of washing machine in a case study company. It is found that the current plan needs 300 days to complete all testing activities but it is delayed from the secheduled time 80 days. As a result, the company would lose sales opportunity around 2,740,000 bath. To solve the problem, this study applies Dependency Structure Matrix (DSM) to analyze the interdependence of current testing procedures. DSM is used to partitioning the testing activities in order to eliminate the activities that cause delays, and also tearing the coupled activities out of the plan. Consequently, it applies CPM, overlapping technique, and resource allocation method to schedule the testing activities into a Gantt chart. The result of study shows that it could reduce 84 days of the delay.