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Digital Edge
Home»Mobile and App Development»Apps & Softwares»What Is Rapid Application Development? RAD Methodology
Apps & Softwares

What Is Rapid Application Development? RAD Methodology

Michael JenningsBy Michael JenningsAug 30, 2019Updated:Sep 2, 2019No Comments3 Mins Read

If you have ever heard of the phrase “Don’t go chasing waterfalls” then it was quoted from James martin who created the rapid application development (RAD) model in 1991. This model was created due to the shortcomings of the Waterfall methodology which was dominant at that time. So, what is RAD?

Contents hide
1 What is rapid application development?
2 Defining the requirements
3 Building working prototypes
4 Receive feedback
5 What are the advantages of RAD?

What is rapid application development?

From the name, you can deduce that it concerns building an application rapidly. But that is not all there is to RAD. unlike the Waterfall model, it focuses on user feedback to create working solutions over strick planning and execution. With RAD there is less planning, more action, testing, lots of testing, and testing again until the application is ready and the customer happy with it.

Even though, you won’t be doing lots of planning here, there are still some basic steps that need to be followed in the rapid application development model.

Defining the requirements

It is not normal to build an app just for building sake. In most cases, the application should be solving a problem. Or there must be a reason for building the app. So, in this step, you will be discussing the reasons and what features you want in the app.

You will need to gather the developers, end-users, and designers to discuss the app’s purpose. Once the requirements are defined, you have to estimate the timeline and budget of the project.

Building working prototypes

In this stage, your team starts building working prototypes based on what was discussed in the first stage. The prototypes built are subject to lots of changes as nothing at this step is permanent. Features can be added, removed, or modified. Rigorous testing and iteration is done at this stage to eliminate bugs and to make sure that the app is working as it should. In this way the final product is of good quality.

Receive feedback

The next thing is to present the working prototype to end-users for review. This plays a big part in the development process and it is one of the main differences between RAD and the Waterfall model. The end-users have early access to the app to use and provide feedback. This feedback is used to make changes and modify the prototypes. This process is repeated until the final app is delivered to end-users.

What are the advantages of RAD?

  • The development time is significantly reduced and the end-users can start using their applications faster.
  • Changes can be made to the app without much difficulty.
  • The final product will end up with fewer errors due to rigorous testing and iteration.
  • The cost of building the app is reduced because even though you will need money to hire talented developers, the time is reduced. Also, maintenance costs are reduced.
  • The app produced can easily adopt new technologies and features can be added seamlessly.
  • Apps built using the rapid application development model takes care of your business needs.
  • With the RAD model, risks of project failure is managed and under control due to the rigorous testing and iteration.

The rapid application model is great for your app development because it takes into account all the aspects of your business. But it is not a great fit for all projects. For example, it is not suitable for large projects. So, you should be careful when using RAD. Once you have taken all that into consideration, you can then begin to enjoy all the benefits of RAD.

Michael Jennings

Micheal wrote his first article for Digitaledge.org in 2015 and now calls himself a “tech cupid.” Proud owner of a weird collection of cocktail ingredients and rings, along with a fascination for AI and algorithms. He loves to write about devices that make our life easier and occasionally about movies. “Would love to witness the Zombie Apocalypse before I die.”- Michael

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