SOLVING FUZZY TIME-COST TRADE-OFF PROBLEM USING HAAR CRITICAL PATH METHOD OF OCTAGONAL FUZZY NUMBERS

The goal of this study is to present the octagonal fuzzy number (OCFN) in uncertain situations. The critical path method (CPM) is a significant role for project planning and control, especially for large and complex projects. The successful implementation of the CPM will be aided by a clear definition of time length. Time and cost are the most significant aspects to consider when designing a project. The goal of the project is to complete it on time, on budget, and to meet other objective of the project. However, in actual life, the length of time cannot be precisely specified. As a result, there is always a degree of ambiguity about the duration of activities, prompting the development of the fuzzy critical path technique. In this article, a wavelet-based ranking called Haar ranking for OCFN is used. The fuzzy parameters are first transformed to Haar tuples using the Haar wavelet approach, and then the critical path method is used to find the optimum cost and duration.