Tedarik zinciri yönetimi için grup karar destek sistemleri

ABSTRACT As organizations continously seek to provide their products and services to customers faster and cheaper, managers have come to realize that they can not accomplish it alone; they hence must work on a cooperative basis in Supply Chain Management (SCM). Nowadays, many important decisions in organizations are made not only by a single individual, but also by groups of individuals. Group Decision Support Systems (GDSS) enable organizations to focus on key business activities especially in Supply Chain Management Process. In this process, from the raw material to the end customer there are two flows, which are the material flow and the information flow. These flows must be managed successfully via GDSS in SCM. In every stage of SCM, there is a selection process. Therefore, the firms may handle this selection by effectively using GDSS. In GDSS, there is a multi criteria decision aid. This aid aims to give the decision maker some tools and techniques in order to enable him to advance in solving a decision problem where several points of view must be taken into account. Therefore, Multi Criteria Decision Making (MCDM) methods have received increased attention and become a practical approach for certain types of problems in the real life. This research describes the development of a model for the selection of laptop computers. The purpose of this study is to apply Multiple Attribute Decision Making (MADM) methods to the selection of laptop computers for a firm (which is the procurement stage of SCM) by using GDSS. Our model consists of 279 different types of laptop computers and 86 criteria. The methods used in this study are Analytic Hierarchy Process (AHP), REMBRANDT, ELECTRE, and PROMETHEE. The following steps were carried out while applying the methods to the problem. Firstly, the hierarchy tree was created by decomposing into criteria and sub-criteria.. Secondly, the weigths for the criteria and alternatives were determined. The relevant weights were calculated using pairwise comparisons by GDSS. Finally MCDM methods were applied to this model. Programming language Java was used to implement the considered methods. The results look like similar. Based on this model, the research provides a means whereby companies or organizations can assess the selection of activities, which are critical to their business by using GDSS. Keywords: Group Decision Support Systems (GDSS), Supply Chain Management (SCM) Multi Criteria Decision Making (MCDM), Multiple Attribute Decision Making (MADM), AHP, REMBRANDT, ELECTRE and PROMETHEE Methods