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Business Value of Information Technology: A Study of Electronic Data Interchange
, 1995
"... A great deal of controversy exists about the impact of information technology on firm performance. While some authors have reported positive impacts, others have found negative or no impacts. This study focuses on Electronic Data Interchange (EDI) technology. Many of the problems in this line of res ..."
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A great deal of controversy exists about the impact of information technology on firm performance. While some authors have reported positive impacts, others have found negative or no impacts. This study focuses on Electronic Data Interchange (EDI) technology. Many of the problems in this line of research are overcome in this study by conducting a careful analysis of the performance data of the past decade gathered from the assembly centers of Chrysler Corporation. This study estimates the dollar benefits of improved information exchanges between Chrysler and its suppliers that result from using EDI. After controlling for variations in operational complexity arising from mix, volume, parts complexity, model, and engineering changes, the savings per vehicle that result from improved information exchanges are estimated to be about $60. Including the additional savings from electronic document preparation and transmission, the total benefits of EDI per vehicle amount to over $100. System wide, this translates to annual savings of $220 million for the company.
ANALYSIS OF A MULTIITEM INVENTORY PROBLEM USING OPTIMAL POLICY SURFACES
"... In this paper we shall consider a multiitem inventory problem with unspecified singleitem unit costs. Rather than examining a single cost function, we shall deal with an approach which incorporates aggregate ..."
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In this paper we shall consider a multiitem inventory problem with unspecified singleitem unit costs. Rather than examining a single cost function, we shall deal with an approach which incorporates aggregate
A Optuimal Policy for a TwoEchelon Inventory/Distribution System
"... This paper develops a simple optimal solution for a twoechelon serial inventory/distribution system, consisting of a warehouse and a retailer, under deterministic demand. In this system a single item provided by an outside supplier is stocked at a warehouse and then distributed to customers through ..."
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This paper develops a simple optimal solution for a twoechelon serial inventory/distribution system, consisting of a warehouse and a retailer, under deterministic demand. In this system a single item provided by an outside supplier is stocked at a warehouse and then distributed to customers through a retailer. Two different solution procedures of a deterministic model for obtaining the minimum of the total cost of set ups, inventory holding, transportation are available in the literature. In both of them the batch (part of a lot) size from the warehouse to the retailer must be less than or equal to the minimum of the inventory capacity at the retailer and the capacity of the transport vehicle. In providing the optimal solution, the inability of the earlier procedure was demonstrated by the latter one. But the later policy seems to be a complicated one including many subcases. It appeared to be much more complex when the inequality case of the capacity constraint is true. In contrast, in this paper we develop a simple optimal solution policy of the problem using KarushKuhnTucker theorem by taking into account the transportation time, which is able to consider all cases much more easily. A comparative study of the solution procedures on results of 5 numerical examples is also carried out to justify our claim.
Utilization of MultiObjective Genetic Algorithm for OneItem MultiLevel Inventory Distribution System
"... An Inventorydistribution system for an item with multilevel warehouses and retailers is considered in stochastic environment (probabilistic demand). Here the model has been formulated as a multicriteria decision making (MCDM) problem. The objectives are (i) maximization of customer service and (i ..."
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An Inventorydistribution system for an item with multilevel warehouses and retailers is considered in stochastic environment (probabilistic demand). Here the model has been formulated as a multicriteria decision making (MCDM) problem. The objectives are (i) maximization of customer service and (ii) minimization of inventory related total cost of the system including total transportation cost. A MultiObjective Genetic Algorithm (MOGA) has developed and implemented to solve the above MCDM problem. The model has been illustrated by a numerical example. A set of compromise solution including optimum and near optimum ones via MOGA has been derived and the results are compared with that obtained from few other techniques (Goal Programming Method (GPM), Fuzzy Additive
Solving a new biobjective joint replenishment inventory model with modied RAND and Genetic Algorithms
 TURK J ELEC ENG & COMP SCI
, 2014
"... There are many cases in real inventory systems where more than one objective must be optimized. The main purpose of this research is to develop a multiobjective joint replenishment problem (JRP), where one objective is the minimization of the total inventory investment and another is the minimizat ..."
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There are many cases in real inventory systems where more than one objective must be optimized. The main purpose of this research is to develop a multiobjective joint replenishment problem (JRP), where one objective is the minimization of the total inventory investment and another is the minimization of the total inventory ordering and holding costs. To solve the suggested model, 3 algorithms are proposed. In the rst algorithm, the existing RAND method, called the best heuristic for solving the JRP, is modied and a new heuristic algorithm is developed to be applicable to the JRP with 2 objectives. The second algorithm is a multiobjective genetic algorithm that has shown good performance for solving the JRP. Finally, a third algorithm is developed, using a combination of the 2 previous ones. The performances of these algorithms are then compared. Running the programs shows good performance in solving the 9200 randomly produced problems.
REPORT DOCUMENTATION PAGE ls REPORT SECURITY CLASSIFICA1 ION 1b. RESTRICTIVE MARKINGS UNCLASSIFIED
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