SOFTWARE MAINTENANCE
Abstract
A consequence of the widespread utilisation of computer based technology over
the past few decades has been the emergence of vast, highly complex computer
systems whose content and structure are increasingly resistant to modification
and change. However fallible such legacy systems remain, many are
"mission-critical" whereby their failure may lead to the collapse of the
business or industry in which they serve. In such cases, it is ultimately not
possible to decommission the system in question. The present report
investigates the nature of such systems and examines why legacy systems cause
problems to Software Maintenance Managers? This report also provides a brief
overview as to how such problems can be minimised and controlled.
Keywords: Legacy systems, legacy system migration, mission critical systems,
re-engineering, software wrapping, software evolution.
1. Introduction
The literature describes legacy systems......
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Approximate Word Count: 2388
Approximate Pages: 10 (260 words per double-spaced page) |