Percepatan Proyek pada Schedule Penjadwalan Kapal Perang dengan Precedence Diagram Method di Perusahaan Galangan Kapal Surabaya

The Shipyard Company is a company that operates in the shipping sector, including ship production, overhaul and ship maintenance. In this case, the Shipbuilding Company has an important role in providing quality and timeliness in every project that has been accepted. Quality and timeliness are closely related to the planned production schedule, with efficient and effective scheduling it will have an impact on the quality results and production progress carried out, and cut excess production costs. Based on these needs, an analysis was carried out using the Precedence Diagram Method (PDM) on the Install Machinery Engine Deck 1 sub-job on the Warship project. The data needed in this research is the work breakdown structure (WBS). Based on the analysis that has been carried out, it was found that the most efficient path was found by eliminating dummy factors, so that work can be carried out simultaneously without waiting for previous work. In this case, it was found that the processing time for the Install Machinery Engine Deck 1 work on the Warship project was 471 days, compared to 657 days previously. Thus, the conclusion of this research is that the PDM method schedule has more efficient results than previous planning.