Comparison between RAD and OOAD

1220 Words3 Pages

1. INTRODUCTION

Currently, systems professionals, IT business practitioners, analysts and designers are on-the-job of creating modern and improved techniques for systems development and commercial information systems engineering domain, Beynon-Davies et al (2002). Due to competitive pressures and cost increase in business endeavors, organizations seek ways of doing business that are effective and less consuming time, hence Rapid Application Development (RAD) and Object-Oriented Analysis and design (OOAD), Boehm et al (1997).

This essay reviews the history of RAD and OOAD as recently emerged information systems development methodologies distinguished for high levels use of iterative prototyping and customer involvement, analyzes their features and observes the comparisons between the two.

2. RAPID APPLICATION DEVELOPMENT

2.1 History of RAD

In response to the 1970s traditional life-cycle drawbacks, Barry Boehm introduced his Spiral Model which implemented software prototyping as a way of reducing risk and Tom Gilb’s Evolutionary Life Cycle which emanates from the concept of evolutionary prototyping rationale whereby prototypes are built then developed into the final product. These prior works were the basis for Scott Shultz’s Rapid Iterative Production Prototyping (RIPP) at DuPont. James Martin in 1991 then extended the work done into a more formalized process now called Rapid Application Development (RAD). The RAD approach incorporates developing and refining data models, process models, and prototype through an iterative process.

2.2 Features of RAD

Rapid Application Development is a methodology that promises organizations the ability to develop and deploy strategically important systems more quickly, while simu...

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18. Systems analysis and design written by Alan Dennis and Barbara haley Wixom. After studying Chapter 1, pages 8-14, 20 and chapter 16, pages 446-476, 499-501.

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20. Introduction to system analysis and design: A structured approach by Penny A Kendall Chapter 14 pages 406-408

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22. http://www.exsys.com.sg/services/4D%20Princlipals.htm

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