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New procedures with new activity assumptions for solving resource constrained project scheduling problems

The resource-constrained project scheduling problem (RCPSP) is a well-known and widely studied topic. The underlying problem assumes that non-preemptions and that constant resources are restrictions imposed on project activities, which are to be scheduled, subject to precedence relation and limited resource constraints. | New procedures with new activity assumptions for solving resource constrained project scheduling problems Journal of Project Management 5 2020 41 58 Contents lists available at GrowingScience Journal of Project Management homepage www.GrowingScience.com New procedures with new activity assumptions for solving resource con- strained project scheduling problems Samer Ben Issaa and Yiliu Tua a Schulich School of Engineering Department of Mechanical and Manufacturing Engineering University Drive 2500 N.W. Calgary Alberta T2N 1N4 Canada CHRONICLE ABSTRACT Article history The resource-constrained project scheduling problem RCPSP is a well-known and widely Received May 25 2019 studied topic. The underlying problem assumes that non-preemptions and that constant re- Received in revised format June sources are restrictions imposed on project activities which are to be scheduled subject to 21 2019 precedence relation and limited resource constraints. Project activities in RCPSP are clas- Accepted July 21 2019 Available online sified under category A. The problem is expanded to include various other activity assump- July 22 2019 tions categories such as B and C. In the Preemptive-RCPSP project activities are classified Keywords under category B which refers to the activity that can be implemented using constant re- Project scheduling sources and constant durations. In the Flexible-RCPSP project activities are classified under Limited multi-resource category C which refers to the activities that can be executed using flexible resources over ABCD activity classifications flexible durations and preemptions are not allowed. However in One-of-a-Kind Production Flexible resource profile companies OKP such as the housing industry plastic injection moldings and RV manu- facturing all known as manufactured-to-order operations the activities are classified un- der category D in addition to A B and C simultaneously. Category D refers to the activities that can be executed using .