Implementation of standardized wbs (work breakdown structure) for time and cost performance. (study case: building project PT. X, Kuala Tanjung, Sumatera Utara)

The WBS standard is a tool in project management. This WBS standard is used as a basis for developing information systems in construction projects so that projects can be easily managed. By implementing WBS standards to manage construction projects, in this study we will assess the effectiveness of using WBS standards in building projects with case studies on PT. X Kuala Tanjung, North Sumatra. In this study will assess the cost and time performance of the project and the factors that influence it. This study uses a qualitative and quantitative approach. The method used in assessing cost and time performance in this study is with Earned Value Method (EVM). Collecting data by survey uses questionnaires to project managers. The results of this study show that the use of the WBS standard greatly influences the cost and time performance of the project. From observations for 3 months of work progress, the results of the work can be obtained on budget and schedule ahead. Factors that influence cost and time performance include: work items becoming clearer, the volume of material and budget becoming more planned, making purchasing orders (PO) more controlled.