The full text of this article:

Improving mobile operator information system efficiency through EAI
by Ivan Rozman, Matjaz B. Juric, Marjan Hericko, Ivan Vezocnik, Marjan Krisper
International Journal of Information Technology and Management (IJITM), Vol. 3, No. 2/3/4, 2004
Abstract: Ability to integrate legacy assets and reusing their functionality in modern web-enabled information systems are important features of new-generation technologies. In the paper, organisational challenges are discussed, a multiphase integration procedure is proposed, which enables step-by-step integration of legacy applications and extension of their functionality with new generation technologies. A decision model for selecting the most appropriate technology infrastructure is presented and several technologies are evaluated. The paper, which also presents a integration case study of a major mobile phone operator company, contributes to the general understanding of legacy systems integration, gives a solid basis for making a decision about the underlying technology and presents an integration procedure that provably works in practice.

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