DEMATEL ve AHP Yöntemleri İle İşletmelerin Satın Alma Problemine Bütünleşik Bir Yaklaşım, DSLR Kamera Örneği1

Satın alma kararları işletmeler için büyük önem taşımaktadır. İşletmeler bu kararı verirken, uzman görüşlerinin yanı sıra kendi önceliklerini de göz önüne almaktadırlar. Bu nedenle, hem uzman görüşlerini hem de işletme isteklerini göz önünde bulunduran bir yöntem geliştirme gereği bulunmaktadır. Bu çalışmada, satın alma sürecindeki faktörlerin ağırlıkları ve birbirleri ile ilişkisi DEMATEL (The Decision Making Trial and Evaluation Laboratory) yöntemi ile belirlenmiştir. Ardından, bu faktörlerin işletme için önceliği AHP (Analitik Hiyerarşi Süreci) yöntemi ile değerlendirilmiştir. Oluşturulan algoritma ile hem uzman görüşlerine, hem işletme önceliklerine, hem de satın alınacak teçhizatın teknik özelliklerine dayalı bütünleşik bir seçim yöntemi elde edilmiştir. Önerdiğimiz bu yöntem DSLR kamera satın alacak bir fotoğrafçılık işletmesinde uygulanmıştır.

An Integrated Approach to the Purchase Problem of Businesses with DEMATEL and AHP Methods: A DSLR Camera Example

Purchasing decisions are of great importance for businesses. While the decision makers are making their decisions, they take into account their priorities next to the experts' opinions. Therefore, there is a need to develop a method that considers both the experts' opinions and the business's requirements. In this study, the weight and interrelation of factors are determined by the DEMATEL (The Decision Making Trial and Evaluation Laboratory) method. Then, priority for the business of these factors is evaluated by the AHP (Analytical Hierarchy Process) method. An integrated selection method based on (i) the experts' opinions, (ii) business priorities and (iii) specifications of the equipment to be purchased all together is obtained by a generated algorithm. The method that we proposed is implemented to a photography business for buying a new DSLR camera.

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