Rapid Application Development (RAD)

First knows that Rapid action development is also called as RAD model. It works on agile software development. The important feature of agile of the RAD model is the use of great advancement approaches and methods. If a project can be divided into manageable modules and each module can be independently assigned to different teams, the model can be used to implement the project. Then, the finished product can be created by combining these modules. RAD works very effectively, so let’s know how does RAD work?

How does RAD Work?

The led-up for rapid action development (RAD) is made up of four phases or elements of the system: requirement gathering, rapid prototyping, construction, and deployment.

Gathering Requirements

Rapid action development stands out from conventional software development models from start. This does not require you to meet with end customers and obtain a comprehensive list of requirements; rather, it requests a broad necessity. The general character of the necessities gives you the time to section particular requirements at various points in the development cycle.

Rapid Prototyping

Here the real work is done. Rather than trying to follow a rigorous set of specifications, developers can create working prototypes with various capabilities and features as rapidly as possible. Such prototypes are then presented to customers, who keep voting on their preferences and dislike.

Most of the time, these designs are soon established to display only the most important features. This one is common, and the final result is only produced when the customer and designer agree on the final result.


Construction is a vital phase in development. Software designers and programmers work tirelessly to turn a working model into a workable system. At this stage, reviews and customer feedback are vital, and the majority of errors, aspects, and modifications are discussed. The above phase can be relatively long, particularly in instances where customers alter guidance or responses are demanding.


The final phase is to deploy the developed system into a real-world production setting. Enormous scale test methods, documentation, performance monitoring, final fully customizable, and analytical models are all part of the deployment phase. Before going live, teams spend lots of time debugging the software and performing final progress and upkeep tasks.

RAD places a strong emphasis on prototyping as an option to create specifications. It implies that RAD tends to work well in situations where the interface is more important than non-Graphic user interface programs. The RAD model contains the agile approach.

Phases of RAD Model

Here we discussed Some important phases of the RAD model. These are −

Business Modeling

The flow of data among various business functions is recognized.

Data modeling

Data objects needed to run the company are described using data collected from business modeling

Process Modeling

Objects described in data modeling are transformed to create the business data flow to accomplish some relevant business objectives process involves trying to add, erase, and customize data items offered.

Application Development

The real system is built and programmed using automation. This refers to the procedure for turning the overall concept, process, and relevant information into the desired output. Because it continues to be in its early stages, this outcome is termed a prototype.

Testing and Replacement

The Rapid action development model brings down checking processing times because prototypes are individually checked throughout each process.

When Should You Use RAD Model?

Whenever the user has well-defined prerequisites, the customer is associated all across the product lifecycle, the project could be time packaged, the features delivered in incremental steps, good efficiency is not required, physical hazards are cheap, and the framework can be customizable. In such cases, we can employ the RAD Model.

Advantages of RAD

  • Implementing reusability elements to a shorter project time is required.

  • Customer feedback is accessible during the initial stages.

  • Prices decrease because less number of designers are needed.

  • Employing powerful design tools leads to superior products in a shorter period.

  • The various steps can be used to track the project's growth and innovation.

Disadvantages of RAD Model

  • Using strong and effective techniques necessitates employing professionals with extensive experience.

  • The exclusion of modular components may result in project failure.

  • To complete the project on time, the team leader has to collaborate closely with both the designers and customers.

  • This RAD model cannot be applied to systems that cannot be adequately flexible in manufacturing.

  • Customer/user participation is important at all stages of the product's lifespan.

Application of RAD Model

  • The RAD model is perfect for a system with well-defined prerequisites and a reduced development period.

  • It is also appropriate for projects with modular prerequisites and reusable elements.

  • When existing system parts can be used to create an entirely novel system with small modifications, the RAD model is applicable.

  • This RAD model is only applicable if the teams are made up of specialists. This is because correct information and the capacity to employ effective methods are required.

  • When the budget allows for employing automated equipment and methods, this model must be selected.


RAD is an abbreviation for Rapid Action Development. The Rapid Action Development model refers to a software development procedure centered on designing with no proper planning.

Updated on: 27-Mar-2023


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