Topic: Rapid Application Development Techniques

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   Rapid Application Development Techniques         

Iterative Software Lifecycle

Two
of the more popular life cycle models are the traditional Waterfall
model and the Iterative or Spiral model. The Iterative/Spiral model is
a rapid application development (RAD) model.

In the Waterfall
model, a project progresses through sequential steps from the initial
concept through system testing. The problem with this development life
cycle is that you are usually not aware of major problems until the
system is ready for production, because this is when all the pieces of
the software are integrated together in preparation for production.

The
Iterative Software Lifecycle (sometimes referred to as the Spiral
Software Lifecycle) model is a risk-oriented one that divides a
software project up into different subprojects.

Each subproject
addresses one or more major risks until all are identified. The
Iterative model allows for increased creativity and greater management
of risk due to its iterative nature.

This lifecycle implements
portions of functionality in pre-releases. For example, a layer of
functionality will be delivered as a .1 release. The full product is
run through the testing cycle and user acceptance. Then more
functionality is added as .2 release. It is then run through the
testing cycle and user acceptance.

This Iterative cycle is
repeated until all functionality is added and fully tested. This allows
the team to discover performance issues and design flaws early in the
project.

Author	Message
tanushree Senior Member Joined: 04Apr2007 Online Status: Offline Posts: 2160	Topic: Rapid Application Development Techniques Posted: 15Oct2007 at 3:20am
	Rapid Application Development Techniques Iterative Software Lifecycle Two of the more popular life cycle models are the traditional Waterfall model and the Iterative or Spiral model. The Iterative/Spiral model is a rapid application development (RAD) model. In the Waterfall model, a project progresses through sequential steps from the initial concept through system testing. The problem with this development life cycle is that you are usually not aware of major problems until the system is ready for production, because this is when all the pieces of the software are integrated together in preparation for production. The Iterative Software Lifecycle (sometimes referred to as the Spiral Software Lifecycle) model is a risk-oriented one that divides a software project up into different subprojects. Each subproject addresses one or more major risks until all are identified. The Iterative model allows for increased creativity and greater management of risk due to its iterative nature. This lifecycle implements portions of functionality in pre-releases. For example, a layer of functionality will be delivered as a .1 release. The full product is run through the testing cycle and user acceptance. Then more functionality is added as .2 release. It is then run through the testing cycle and user acceptance. This Iterative cycle is repeated until all functionality is added and fully tested. This allows the team to discover performance issues and design flaws early in the project. Post Resume: Click here to Upload your Resume & Apply for Jobs

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