Bilgi Sistemlerinin Toplam Sahip Olma Maliyetini Hesaplamak İçin Bir Çerçeve

Giderek daha fazla sayıda organizasyonun faaliyetleri bilgi sistemlerine bağımlı duruma gelmektedir. Bu da bilgi sistemlerini hayatımızın önemli bir bileşeni durumuna getirmektedir. Küreselleşme ve zorlaşan rekabet nedeniyle, rekabet avantajı elde etmek ya da bunu korumak için stratejik maliyet yönetimi vazgeçilmez bir konuma gelmiştir. Bu iki eğilim, bilgi sistemlerinin toplam sahip olma maliyetlerinin (TSOM) hesaplanmasını önemli kılmaktadır. Bu doğrultuda, bir organizasyonun gereksinimleri doğrultusunda genişletilebilecek bir TSOM hesaplama çerçevesi bu çalışma kapsamında sunulmuştur. Böylece mühendislerin uygun maliyetli bilgi sistemleri geliştirmelerine ve/veya mevcut sistemlerin maliyetlerini azaltmak için farklı çözümler uygulamalarına destek olunması hedeflenmiştir. Çerçevenin, uluslararası bir şirkette kullanımını anlatan ve nasıl genişletilebileceğine dair bir örnek oluşturan vaka çalışması ile geçerlilik denetimi yapılmıştır.

A Framework for Calculating Total Cost of Ownership of Information Systems

More and more organizations are being run dependent on information systems. This makes information systems a pivotal component of our lives. Because of globalization and harsh competition, strategic cost management has become essential to gain or keep competitive advantage. These two trends make calculation of Total Cost of Ownership (TCO) of information systems crucial. To this end, a TCO calculation framework, which can be extended according to the requirements of an organization, is presented in this study. Thus, it is aimed to support engineers to develop cost-effective information systems and/or to apply different solutions to reduce costs of existing systems. A validity check has been done with a case study, which describes the use of the framework in an international company and provides an example of how to extend the framework.

Keywords:

information system, computer system, software intensive system total cost of ownership (TCO),

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