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Chapter 5 - Development in the 90s and Beyond—Designing Distributed Object-Oriented Applications

from Part II - OBJECT-ORIENTED ANALYSIS, DESIGN, AND ARCHITECTURE

Published online by Cambridge University Press:  07 September 2010

Scott W. Ambler
Scott W. Ambler
Affiliation:
AmbySoft Inc., Toronto
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Summary

What We'll Learn in This Chapter

The various trends and techniques in creating distributed applications.

How to distribute applications using client/server technology, taking both a two-tier and three-tier approach.

How to distribute the classes of your object-oriented application using traditional client/server approaches, object-oriented client/server (OOCS), and applets.

How to create applications using Common Object Request Broker Architecture (CORBA), a distributed object standard.

The architecture for application development is becoming more and more distributed. We're moving from the centralized mainframe approach popularized in the 1960s and 1970s through the client/server approach of the 1980s, into the distributed classes and distributed objects approaches of the 1990s. In this chapter we will compare and contrast these approaches, concentrating on object-oriented client/server design, a technique for distributing classes across a network of computers.

Over the past 15 years we have seen a general migration from highly centralized mainframe computers with dumb terminals to more and more decentralized information technologies. In Figure 5.1 we see how information technology is slowly evolving from mainframe technology to client/server technology to distributed classes and finally to distributed objects. In this chapter we will discuss the merits of all four of these technologies, concentrating on the reality of today and the near future: distributed classes and distributed objects.

Type
Chapter
Information
Building Object Applications that Work
Your Step-by-Step Handbook for Developing Robust Systems with Object Technology
 , pp. 139 - 168
Publisher: Cambridge University Press
Print publication year: 1997

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