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In the rapid application development (rad) model, the Construction phase focuses on program and application development tasks similar to the sdlc.

The rapid application development procedure is unique. Instead of extensive planning, you divide the project into five stages: business modeling, data modeling, process modeling, application generation, testing, and turnover. Rapid Application Development (RAD) is a development model that favors rapid prototyping and feedback over lengthy development and testing cycles. Rapid application development allows developers to make multiple iterations and updates to software without having to start from scratch each time. The spiral model is divided into four stages: planning, design, construction, and evaluation. Iterations take a software project through these phases again and again (called Spirals in this model).

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Universidad de Mexico