RAPID APPLICATION DEVELOPMENT

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Rapid application development (RAD) is a team-based technique that speeds up information systems development and produces a functioning information system.

Like JAD, RAD uses a group approach, but goes much further. While the end product of JAD is a requirements model, the end product of RAD is the new information system. RAD is a complete methodology, with a four-phase life cycle that parallels the traditional SDLC phases. Companies use RAD to reduce cost and development time, and increase the probability of success. RAD relies heavily on prototyping and user involvement. The RAD process allows users to examine a working model as early as possible, determine if it meets their needs, and suggest necessary changes. Based on user input, the prototype is modified and the interactive process continues until the system is completely developed and users are satisfied. The project team uses CASE tools to build the prototypes and create a continuous stream of documentation.

More: JAD Advantages and Disadvantages

RAD Phases and Activities

The RAD model consists of four phases: requirements planning, user design, construction,
and cutover.

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