Coping with Legacy System Migration Complexity

2005 ◽  
Author(s):  
Lei Wu ◽  
H. Sahraoui ◽  
P. Valtchev
Keyword(s):  
Legacy System ◽  
System Migration

Software Asset Re-Use

2012 ◽  
pp. 1-27
Author(s):  
Richard Millham
Keyword(s):  
Cloud Computing ◽  
Software As A Service ◽  
Legacy Systems ◽  
Computing Environment ◽  
Migration Process ◽  
Legacy System ◽  
Cloud Computing Environment ◽  
Data Intensive ◽  
System Migration ◽  
The Web

In this chapter, the author examines the migration process of a legacy system, as a software-as-a-service model, to the Web, and he looks at some of the reasons that drive this legacy system migration. As migration is often a multi-step process, depending on the legacy system being migrated, the author outlines several techniques and transformations for each step of the migration process in order to enable legacy systems, of different types, to be migrated to the cloud. Of particular interest are the different methods to handle data-intensive legacy systems to enable them to function in a cloud computing environment with reduced bandwidth. Unlike the migration of an unstructured legacy system to a locally-distributed desktop system, system migration to a cloud computing environment poses some unique challenges such as restricted bandwidth, scalability, and security. Part of this migration process is adapting the transformed legacy system to be able to function in such an environment. At the end of the chapter, several small case studies of legacy systems, each of a different nature successfully migrated to the cloud, will be given.

Developing legacy system migration methods and tools for technology transfer

2008 ◽  
Vol 38 (13) ◽  
pp. 1333-1364 ◽  
Author(s):  
Andrea De Lucia ◽  
Rita Francese ◽  
Giuseppe Scanniello ◽  
Genoveffa Tortora
Keyword(s):  
Technology Transfer ◽  
Legacy System ◽  
System Migration

Legacy System Migration Approaches

2013 ◽  
Vol 11 (2) ◽  
pp. 840-851
Author(s):  
Gonzalo Salvatierra ◽  
Cristian Mateos ◽  
Marco Crasso ◽  
Alejandro Zunino ◽  
Marcelo Campo
Keyword(s):  
Legacy System ◽  
System Migration

New York State Agencies: A Case Study for Analyzing the Process of Legacy System Migration: Part II

2006 ◽  
Vol 20 (1) ◽  
pp. 139-160
Author(s):  
Ingrid E. Fisher ◽  
Marianne Bradford
Keyword(s):  
New York ◽  
Relational Databases ◽  
Process Management ◽  
New York State ◽  
Cost Benefit ◽  
State Agencies ◽  
Legacy System ◽  
York State ◽  
Operational Constraints ◽  
System Migration

Part II of this case chronicles the actions and outcomes of the legacy system migrations of five New York State agencies. The case highlights the problems these agencies encountered in migrating from legacy systems to enterprise-wide systems built upon relational databases. The case also explores the additional complexities of legacy system migration under the unique legal and operational constraints of governmental entities. Investigated issues include business process management, technical and financial project feasibility, cost-benefit analyses, consultant management, and ERP implementations.

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