Challenges and Issues to Consider When Upgrading Legacy Applications

Challenges and Issues to Consider When Upgrading Legacy Applications

Gerold E. Cameron (American University, USA)
Copyright: © 2000 |Pages: 13
DOI: 10.4018/978-1-878289-67-4.ch008
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Abstract

This chapter will focus on the challenges and issues an organization faces when trying to integrate or migrate their legacy applications with more advanced client/server information systems. These applications present a challenge when an organization attempts to integrate its legacy applications with newer technologies due to the rigid binding of the client to the legacy application server. FAIME, is an object oriented methodology that provides the tools to address application interoperation and plug-and-play. These tools open closed legacy applications through legacy applications decomposition and produce executable objects that bridge different operating systems, communication infrastructures, and databases. To convert a COBOL legacy application to an object-oriented application, a complete restructuring of the legacy program is needed. Objects and their inheritance structure must be identified, data usage and data flow must be analyzed, and instructions must be allocated to objects. Dynamic Object Oriented Programming allows parts of an application design that are represented by objects, to be modified dynamically. Integrating or migrating legacy applications with newer more advanced client/server architectures can be a very expensive and time-consuming undertaking.

Complete Chapter List

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Table of Contents
Chapter 1
Edward R. Sim
The ability to correctly identify system requirements is seen by most Information Systems (IS) researchers and practitioners as essential to the... Sample PDF
Object Oriented Requirements Analysis: Its Challenges and Use
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Chapter 2
H. James Nelson, Kay M. Nelson, Mehdi Ghods, Holly E. Lee
The term structured methods refers to a philosophy of software development which emphasizes an adherence to a set of consistent rules or methods... Sample PDF
Building on Structured Design Techniques in the Object Oriented Environment
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Chapter 3
Samuel K.A. Agyemang
Object oriented technology is still growing and has not yet matured. Many articles have been written on object oriented software development... Sample PDF
Object Oriented Testing in Software Development
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Chapter 4
Jozsef T. Komlodi
Despite its decade long history, object database technology has never entered mainstream system development. In this work, I look at the background... Sample PDF
Technical and Market Viability of Object Database Technology
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Chapter 5
Jane Fedorowicz, Denis Lee
Companies are increasingly requiring that new information systems development projects employ object oriented (OO) analysis, design and programming... Sample PDF
Software Reuse and Object Technology
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Chapter 6
Gretchen Irwin, Chamini Wasalathantry
Object Oriented (OO) technology and software reuse are widely believed to be key ingredients to improving systems development productivity and... Sample PDF
Reuse in Object Oriented Modeling: An Empirical Study of Experienced and Novice Analysts
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Chapter 7
Hernan Cobo, Virginia Mauco
The OO paradigm is the predominant software trend of the 1990s. According to the literature, it provides a unifying model for various phases of... Sample PDF
How to Transform Legacy Systems into Object Oriented Systems
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Chapter 8
Gerold E. Cameron
This chapter will focus on the challenges and issues an organization faces when trying to integrate or migrate their legacy applications with more... Sample PDF
Challenges and Issues to Consider When Upgrading Legacy Applications
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Chapter 9
Alex Podaras
Distributed objects, as applied to the term distributed object oriented systems, can be defined as those objects that have many locations on a... Sample PDF
Understanding Distributed Object Oriented Systems
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Chapter 10
David H. Patton
Tomorrow’s business environment will make it increasingly difficult for businesses to operate efficiently. To gain the needed edge, in the global... Sample PDF
Distributed Object Business Engineering: Digital Legos for the Enterprise
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Chapter 11
Luis F. Proano
This chapter is a review of journals and printed articles published during the last two years. It will give you an idea of the current needs in the... Sample PDF
What Are the Actual Industry Expectations and Needs with Regard to Object Oriented Technology?
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Chapter 12
Robert M. Gittins
The rise of Object Oriented (OO) technologies has been nothing if not spectacular in the past few years. The IT world has witnessed the next... Sample PDF
Business Process Reengineering with Object Oriented Technology: Is the Gamble Worth the Risk?
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