Rapid application development
Overview
 
Rapid application development (RAD) is a software development methodology
Software development methodology
A software development methodology or system development methodology in software engineering is a framework that is used to structure, plan, and control the process of developing an information system.- History :...

 that uses minimal planning in favor of rapid prototyping. The "planning" of software developed using RAD is interleaved with writing the software itself. The lack of extensive pre-planning generally allows software to be written much faster, and makes it easier to change requirements.
Rapid application development is a software development methodology
Software development methodology
A software development methodology or system development methodology in software engineering is a framework that is used to structure, plan, and control the process of developing an information system.- History :...

 that involves methods like iterative development
Iterative and incremental development
Iterative and Incremental development is at the liver of a cyclic software development process developed in response to the weaknesses of the waterfall model...

 and software prototyping
Software prototyping
*Software prototyping, refers to the activity of creating prototypes of software applications, i.e., incomplete versions of the software program being developed...

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