Application of ROC and CODAS Techniques for Cloud Service Provider Selection

Abstract

Due to the widespread use of cloud services, the choice of cloud service providers has become an important problem for companies. It is a strategic decision-making problem for companies to determine the most suitable service provider that can meet their expectations and needs. Choosing the most effective service provider for a firm depends on numerous criteria based on the firm's strategies, needs and resources. Therefore, in the present study, an integrated decision model based on Rank Order Centroid (ROC) and Combinative Distance-Based Assessment (CODAS) techniques has been developed. In the first stage of the application, the criteria were evaluated using the ROC method, and the service providers were listed using the CODAS technique in the second stage. The effectiveness of the proposed model has been tested by a software company that wants to select a cloud service provider. The results of the research are expected to contribute to service providers and firms that want to select cloud service providers that can meet their needs.

Keywords

• Cloud Computing
• Cloud Service Provider
• Multi-Criteria Decision Making
• ROC
• CODAS

Bulut Hizmet Sağlayıcısı Seçimi için ROC ve CODAS Tekniklerinin Uygulanması

Abstract

Bulut hizmetlerinin yaygınlaşması nedeniyle, bulut hizmet sağlayıcılarının seçimi firmalar için önemli bir sorun haline gelmiştir. Firmaların kendi beklenti ve ihtiyaçlarını karşılayabilecek en uygun hizmet sağlayıcısını belirleyebilmeleri stratejik bir karar verme problemidir. Bir firma için en etkili hizmet sağlayıcının seçilmesi, firmanın stratejilerine, ihtiyaçlarına ve kaynaklarına dayanan çok sayıda kritere bağlıdır. Bu yüzden mevcut çalışmada Rank Order Centroid (ROC) ve Combinative Distance-Based Assessment (CODAS) tekniklerine dayalı entegre bir karar modeli geliştirilmiştir. Uygulamanın birinci aşamasında ROC yöntemi aracılığıyla kriterler değerlendirilmiş, ikinci aşamasında CODAS tekniği kullanılarak hizmet sağlayıcıları sıralanmıştır. Önerilen modelin etkinliği bulut hizmet sağlayıcısı seçmek isteyen bir yazılım şirketinde test edilmiştir. Yapılan araştırmada elde edilen sonuçların hizmet sağlayıcılarına ve gereksinimlerini karşılayabilecek bulut hizmet sağlayıcılarını seçmek isteyen kuruluşlara katkı sağlaması beklenmektedir.

Keywords

• Bulut Bilişim
• Bulut Servis Sağlayıcı
• Çok Kriterli Karar Verme

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