engleski

The Evolution of Information System's Architecture and its Impact on Modern Organizations

In the past decades the development and the penetration level of information and communication technologies into organizations and business systems have more and more advanced. In this article we address the question of impact factor that the evolution of information system’ s architectures and concepts has on business organizations and their business processes. We will describe and explain this impact factor through two main domains: evolution of information system’ s architectures and changes in organization’ s business processes. Information system's architectures have significantly changed in the past decades. From simple three layer architecture characterized by thin-client-fat- server or fat-client-thin-server approach till today they have evolved into advanced concepts like component-based architectures or service- oriented architectures. Besides changes in information systems architectures the concept of information systems has changed as well. New concepts like application service providing and external service-oriented architectures are developed and used. More often organizations are owners only of dataware as an information system component, while other components like hardware, software, netware are owned and outsourced by third parties. In the same period of time significant changes have characterized organizations that are using ICT as well. Especially, organizations are getting more and more dependable on the use of information systems support. In extreme cases the level of dependencies between organization and their information system is so high that without it organization can not function normally. Besides that organizations are adapting their businesses to service providing concepts, SOX legislative and virtual organizations.

SOA; IS; architecture

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