RESOURCE CONSTRAINED PROJECT SCHEDULING USING AHP WITH TOPSIS

Quite a few approaches are followed in project scheduling under multiple resources. Typically, priority for each activity is obtained using qualitative data with AHP. In this paper, both quantitative and qualitative data are considered in a fuzzy environment. This paper develops an evaluation model based on the Analytical Hierarchy Process (AHP) and the Technique for Order Performance by Similarity to Ideal Solution (TOPSIS). The AHP is employed to analyze the structure of the project and to determine the weights for the constraints, and TOPSIS method is used to develop the weights for the resources consumed by the activities. A weighted sum of resources for each activity is obtained using these weights of the resources and then ranking the activities by considering the weighted sum of the activities. Scheduling the activities is carried out taking into consideration the rank of the activity as well as the precedence relationship and resource requirements and the final project schedule is obtained. The method is demonstrated through numerical illustration.