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Article
A portfolio approach to managing procurement risk using multi-stage stochastic programming
Procurement is a critical supply chain management function that is susceptible to risk, due mainly to uncertain customer demand and purchase price volatility. A procurement approach in the form of a portfolio ...
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Article
Fuzzy chance-constrained programming model for a multi-echelon reverse logistics network for household appliances
Efficient planning and design of an appropriate reverse logistics network is crucial to the economical collection and disposal of scrapped household appliances and electrical products. Such systems are commonl...
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Article
An approach to the valuation and decision of ERP investment projects based on real options
The risks and uncertainties inherent in most enterprise resources planning (ERP) investment projects are vast. Decision making in multistage ERP projects investment is also complex, due mainly to the uncertain...
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Article
A heuristic for sea-freight container selection, cargo allocation and cargo orientation
A model is proposed to generate solutions for container selection, for the allocation of cargo to containers, and for cargo orientation within a container. The model is in the form of a mixed integer program w...
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Chapter and Conference Paper
Improving the Accuracy of Execution Data of ERP Systems: A Case Study in the Zongxin Telecom Corporation
The poor accuracy of the execution data (AoD) is often seen as a common symptom of unsuccessful enterprise resources planning (ERP) implementation. Finding ways to achieve high AoD is therefore an important an...
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Article
System complexity and the design of decision support systems
The design of Decision Support Systems (DSS) has become an increasingly complex task, so much so that further significant advances in DSS applications may well require a deeper understanding of the nature of s...
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Article
Analysis of a Continuous Review Stock-control Model with Multiple Suppliers
This paper analyses the use of multiple suppliers to replenish one stock item. The replenishment order is split into several portions, one for each supplier, and orders for these portions are placed simultaneo...
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Article
Scheduling Vehicles for Refuse Collection
This paper reports an application of vehicle-scheduling algorithms in the collection of refuse. The problem differs from classical vehicle-scheduling applications in that the tip** site and the place where t...
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Article
Determining Number of Serving Points by Discrete Simulation
This paper presents the results of an attempt to estimate the number of computer terminals required to issue export licences to waiting callers. The problem differs from classical queueing studies in that the ...
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Article
The Completion Time of PERT Networks: Reply
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Article
The Completion Time of PERT Networks
This paper proposes an approximation for the completion time mean and variance of PERT networks in which the durations of individual activities are Normally and independently distributed. The proposed approxim...
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Article
Stock Control with Two Suppliers and Normal Lead Times
This paper helps practitioners to compute the mean and variance of the lead time demand distribution when two suppliers are used simultaneously to replenish stock of a single item. The lead times of each suppl...
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Article
Stock Control Using the Stock Level Frequency Distribution
Stock level frequency distributions are derived for continuous review stock control policies in which the lead time demand is normally distributed. The percentage points of the distributions have been tabulate...
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Article
Tramcar Maintenance
This article describes the work done to determine age limits for preventive replacements and overhauls in tramcar maintenance, where opportunities are provided by a failed component or an essential overhaul. A...
