Simple Additive Weighting in the Development of a Decision Support System for the Selection of House Construction Project Teams

Abstract

Every time they get a project, planning consultants and building implementers always work with contractors to work on the project. However, in project work, there are often several obstacles to the selected contractor, such as delays in work, workmanship not according to plan, and inappropriate building specifications to unskilled experts. This happens because the contractor selection process that is not right causes the construction phase to be not optimal it affects the quality of the resulting building. The selection of contractors involves a complex multi-criteria where each criterion used has different importance and the information about it is not known precisely so a method is needed to overcome these problems. For this reason, it is necessary to have a system in supporting contractor selection decisions, known as the Decision Support System. This system was built using the Rapid Application Development (RAD) design method with the stages of Requirements Planning, User Design, Construction, and Cutover. The construction of this DSS uses one of the methods in making decisions, namely Simple Additive Weighting (SAW) to make an assessment based on predetermined decision-making criteria. From this research, a website-based decision support system was obtained using the javascript programming language, with a score of 79.7% for the ease of use of the system, and a 93.3% score for the usefulness of the system.