delay in implementation and delivery of projects of general contractors working in oil, gas and petrochemical projects, together with their law profits, are the main reasons for writing this paper. it has been tried in t6he article to present an actual and applied method of decision making to determine strategic goals, strategic planning and its relation with the standards of project management...

We report the results of two experiments with different parameter sets designed to study sequential observation and selection decision problems in which payoffs increase monotonically in the quality of the selected alternative. In this class of search problems, applicants are interviewed one at a time, decision makers only learn the applicant's rank relative to the applicants that have been int...

Irrigation and fertilization of crops are common practices necessary for the viability of agricultural communities, but also responsible for water scarcity and water quality deterioration. The effort to cost-effectively manage fresh water availability and diffuse nutrient pollution at the same time needs to take into account trade-offs between economic and multiple environmental objectives. Agr...

We develop a multi-objective model for the time-cost trade-off problem in PERT networks with generalized Erlang distributions of activity durations, using a genetic algorithm. The mean duration of each activity is assumed to be a non-increasing function and the direct cost of each activity is assumed to be a non-decreasing function of the amount of resource allocated to it. The decision variabl...

Abstr act. Selection of players for a high performance cricket team within a finite budget is a complex task which can be viewed as a constrained multiobjective optimization problem. In cricket team formation, batting strength and bowling strength of a team are the major factors affecting its performance and an optimum trade-off needs to be reached in formation of a good team. We propose a mult...

scheduling for job shop is very important in both fields of production management and combinatorial op-timization. however, it is quite difficult to achieve an optimal solution to this problem with traditional opti-mization approaches owing to the high computational complexity. the combination of several optimization criteria induces additional complexity and new problems. in this paper, we pro...

In many real-world scheduling problems (eg. machine scheduling, educational timetabling, personnel scheduling, etc.) several criteria must be considered simultaneously when evaluating the quality of the solution or schedule. Among these criteria there are: length of the schedule, utilisation of resources, satisfaction of people’s preferences and compliance with regulations. Traditionally, these...