Rapid application Development (RAD)
Duration: 5 min
This video lesson is available to enrolled students.
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This educational video provides a comprehensive overview of the Rapid Application Development (RAD) model, a software development methodology. The lecture begins by introducing James Martin, who developed the RAD model at IBM in the 1980s and formalized it in a 1991 book. The core of the presentation details the RAD model's key characteristics, including its suitability for projects with clear customer requirements and short schedules, its emphasis on user involvement throughout the lifecycle, and its quick turnaround time. A flowchart diagram illustrates the model's process, which involves breaking a project into small, independent modules that can be developed in parallel by separate teams. The video concludes by listing the advantages, such as reduced development time and increased component reusability, and the disadvantages, including the need for highly skilled developers and the unsuitability for small projects. The content is presented by an instructor, Sanchit Jain, from Knowledge Gate Eduventures.
Chapters
0:00 – 2:00 00:00-02:00
The video opens with a title card for "SOFTWARE ENGINEERING" and the hashtag #knowledgegate. It then transitions to a slide titled "The RAD Model" which introduces James Martin (19 October 1933 – 24 June 2013) as the developer of the rapid application development approach at IBM in the 1980s, which he formalized in a 1991 book. The slide also features a photo of James Martin and a picture of the instructor, Sanchit Jain, with a logo for "Sanchit Jain Knowledge Gate Educator". The instructor explains that the RAD model is a development approach suitable when customer requirements are clear but the schedule is very short.
2:00 – 5:00 02:00-05:00
The video presents a slide with a flowchart diagram of the RAD model, showing a process that includes Business Modeling, Data Modeling, Process Modeling, Application Generation, and Testing & Turnover. The instructor explains that the model is suitable for projects with clear requirements and short schedules. The next slide details that the model involves breaking a project into small modules that can be assigned to separate teams for parallel development. The final slide lists the advantages, such as reduced development time and increased reusability, and the disadvantages, including the need for highly skilled developers and the requirement for user involvement throughout the development process.
The video systematically builds an understanding of the RAD model by first establishing its historical context with James Martin, then detailing its core principles and process flow. It uses a combination of textual information and a visual diagram to explain how the model works, emphasizing its focus on parallel development and user involvement. The lecture concludes by providing a balanced view through a list of advantages and disadvantages, allowing students to understand both the benefits and the limitations of applying this methodology.