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For more than half a century, simulation has proven to be a successful companion to decision makers and analysts around the world, with several packages being successfully used by thousands of modelers, our team being one of them. Despite great popularity and success, however, there have been issues and short-comings that may threaten the accuracy and efficiency of the model as a decision-making tool...
To get an integrated solution of operational decisions in manufacturing enterprise, this research firstly studies operational decision making process in manufacturing enterprise; it decomposes strategic visions based on BSC theory, and gets the decision targets and decision variables. The decision variables' value will change as the decision environments changed, and the decision variables relate...
The core of international competition of a university lies on the disciplinary competitiveness. In order to create and enhance the disciplinary competence, we should firstly establish a whole reasonable and efficient discipline evaluation system. Comparing with other evaluation methods, DEA has its distinct advantages in the process of evaluating the efficiency of the multiple inputs, multiple outputs...
This paper puts forward a two-stage correlative DEA model to measure airport production efficiency. The complicated production process of decision-making units is decomposed into two sub-processes. The correlative DEA model is used to evaluate the airport production efficiency by considering the co-relationship of sub-processes within the whole production process; an empirical study on 8 airports...
Decision-making in requirements engineering often needs to be done in the presence of uncertainty. Rigorous methods can help to increase the probability of making the most appropriate decisions under the given circumstances. Robustness is a measure for the degree of stability of a solution in case of changes in the problem parameters. This paper presents a method (called DECIDERelease) that applies...
A novel and generic system-dynamic-model is proposed, which analyzes port operation system from perspectives of time, quality and profit. First, by studying the internal structure and operation mechanism of port operation system, a sophisticated port operation system is defined and divided into three subsystems: time, quality and profit. Later a system-dynamic-model including three submodels is built...
This paper presents a simulation model for assessing the mutual impacts of Engineering Change Management (ECM) process and New Product Development (NPD) process on each other. The discrete-event simulation model incorporates ECM into an NPD environment by allowing Engineering Changes (EC) to compete for limited resources with regular NPD activities. The goal is to examine how the relative size and...
This paper intends to use the forecast of the necessities in order to plan for the future needs of the clients and thus, help the gestors in the decision making process. In the business world, the planning attached to the needs, enables the optimization of the resources involved in the productive operation whenever seeking more competitivity of the company where the market is. Based on the data of...
The construction industry has been facing a paradigm shift to (i) increase; productivity, efficiency, infrastructure value, quality and sustainability, (ii) reduce; lifecycle costs, lead times and duplications, via effective collaboration and communication of stakeholders in construction projects. Digital construction is a political initiative to address low productivity in the sector. This seeks...
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