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A SYSTEM ENGINEERING APPROACH FOR THE MIGRATION OF COMPUTER‐BASED SYSTEMS
Author(s) -
Makhlouf Mahmoud A.,
James John H.,
Wigfield Edward C.,
Wheeler Thomas M.,
Modeen Raymond A.,
Schaffner Stuart C.
Publication year - 1996
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.1996.tb02014.x
Subject(s) - computer science , legacy system , systems engineering , systems design , system of systems , software engineering , engineering , programming language , software
In this paper major factors contributing to system migration failures are reviewed. We highlight the need for a comprehensive system engineering approach that can address the inherent complexities of migrating mission critical systems. To address this need, a model‐based approach supported by tools is presented. Central to this approach is the use of a new type of system architecture model called “Loop Relationship (LR) Models.” These models are used to recover the legacy system design, specify the migrated system requirements and proposed system design; and analyze the performance implications of proposed modifications to the legacy system. Finally we will discuss our experience in forming a team to apply the above approach on a number of system migration projects.