the underlying concepts of SDLC, but are not as rigid. Rapid Application Development
RAD Methodology (click to enlarge) Rapid Application Development (RAD) focuses on quickly building a working model of the software, getting feedback from users, and then using that feedback to update the working model. After several iterations of development, a final version is developed and implemented. The RAD methodology consists of four phases. 1. Requirements Planning. This phase is similar to the preliminary analysis, system analysis, and design phases of the SDLC. In this phase the overall requirements for the system are defined, a team is identified, and feasibility is determined. 2. User Design. In the user design phase representatives of the users work with the system analysts, designers, and programmers to interactively create the design of the system. Sometimes a Joint Application Development (JAD) session is used to facilitate working with all of these various stakeholders. A JAD session brings all of the stakeholders for a structured discussion Information Systems for Business and Beyond (2019) pg. 205
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