A business perspective of legacy systems

Kelly, Sue, Holland, Christoper, Gibson, N., & Light, Ben (1999) A business perspective of legacy systems. Communications of the Association for Information Systems, 2(7), pp. 1-27.

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Abstract Legacy information systems evolved incrementally in response to changes in business strategy and information technology. Organizations are now being forced to change much more radically and quickly than previously and this change places new demands on information systems. Legacy information systems are usually considered from a technical perspective, addressing issues such as age, complexity, maintainability, design and technology. We wish to demonstrate that the business dimension to legacy information systems, represented by the organisation structure, business processes and procedures that are bound up in the design and operation of the existing IT systems, is also significant. This paper identifies the important role of legacy information systems in the formation of new strategies. We show that the move away from a stable to an unstable business environment accelerates the rate of change. Furthermore, the gap between what the legacy information systems can deliver and the strategic vision of the organization widens when the legacy information systems are unable to adapt to meet the new requirements. An analysis of fifteen case studies provides evidence that legacy information systems include business and technical dimensions and that the systems can present problems when there is a misalignment between the strategic vision of the business, the IT legacy and the old business model embodied in the legacy.

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ID Code: 75719
Item Type: Journal Article
Refereed: No
Additional URLs:
Keywords: Legacy IS (Legacy), My Papers (Mine)
ISSN: 1529-3181
Subjects: Australian and New Zealand Standard Research Classification > STUDIES IN CREATIVE ARTS AND WRITING (190000) > FILM TELEVISION AND DIGITAL MEDIA (190200)
Divisions: Current > QUT Faculties and Divisions > Creative Industries Faculty
Copyright Owner: Copyright 1999 Association for Information Systems
Copyright Statement: Copyright ©1999, by the Association for Information Systems. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and full citation on the first page. Copyright for components of this work owned by others than the Association for Information Systems must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists requires prior specific permission and/or fee. Request permission to publish from: AIS Administrative Office, P.O. Box 2712 Atlanta, GA, 30301-2712 Attn: Reprints or via e-mail from ais@gsu.edu
Deposited On: 28 Aug 2014 04:26
Last Modified: 03 Aug 2016 23:26

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