Rapid Application Developement

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What is Rapid Application Development?

Contents

What is Rapid Application Development (RAD)?................................ 1 Why Do You Need to be RAD? .......................................................... 2 The History of RAD............................................................................. 4 Essential Aspects of RAD................................................................... 6 RAD and COBOL?............................................................................ 29 Conclusion ........................................................................................ 32

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What is Rapid Application Development?

What is Rapid Application Development (RAD)?

James Martin, in his book first coining the term, wrote, “Rapid Application Development (RAD) is a development lifecycle designed to give much faster development and higher-quality results than those achieved with the traditional lifecycle. It is designed to take the maximum advantage of powerful development software that has evolved recently.” Professor Clifford Kettemborough of Whitehead College, University of Redlands, defines Rapid Application Development as “an approach to building computer systems which combines Computer-Assisted Software Engineering (CASE) tools and techniques, user-driven prototyping, and stringent project delivery time limits into a potent, tested, reliable formula for top-notch quality and productivity. build them.” Online Knowledge defines Rapid Application Development as “a methodology that enables organizations to develop strategically important systems faster while reducing development costs and maintaining quality. This is achieved by using a series of proven application development techniques, within a well-defined methodology.” In short, Rapid Application Development is exactly that. It is a process through which the development cycle of an application is expedited. Rapid Application Development thus enables quality products to be developed faster, saving valuable resources. The magnitude of such savings is truly RAD! RAD drastically raises the quality of finished systems while reducing the time it takes to

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Why Do You Need to be RAD?

The Gartner Group writes, “Many of the business processes devised after World War II…have remained essentially the same. Corporations are now finding that work organized stepwise incurs unavoidable delays and errors as paper is handed off from person to person and unit to unit…IT is the single most powerful tool for breaking traditional assumptions and rules about business, and it is the tool that makes new ways of operation possible.” The most revolutionary and successful change in IT business practices today is Rapid Application Development. RAD takes advantage of automated tools and techniques to restructure the process of building information systems. development. This new process, extrapolated to the entire IS organization, results in a profound transformation of information systems RAD replaces hand-design and coding processes, which are dependent upon the skills of isolated individuals, with automated design and coding, which is an inherently more stable process. RAD may thus give an IS organization its first real basis for continuous improvement. In addition to being more stable, Rapid Application Development is a more capable process, as it is much faster and less error prone than hand coding. Most organizations are faced with a large backlog of new systems to be developed. Over 65% of the typical Information System’s budget is spent on the maintenance of existing systems. These systems have little documentation and were developed with programming languages and database systems that are difficult and time consuming to change. These organizations are thus faced with upgrading their aging...
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