An Overview Of RAD Rapid Application Development Methodology
RAD rapid application development refers to a software development methodology in which very little planning is done in order to achieve rapid prototyping. This methodology was developed to respond to the need to urgently deliver projects. This technique may not be suitable for all projects particularly those in which reliability is a major concern like an aircraft monitoring system. The success of the RAD is determined by the project scope, circumstances and size.
To enhance the performance of this methodology and increase the delivery speed the project is broken down into several tasks. Several management techniques are also applied optimally to achieve maximum results. Prototyping, time boxing and iteration are the commonly used techniques. Moreover, functionality and performance are usually compromised so that the systems are delivered promptly and to simplify the maintenance task.
The overall process is broken down into several tasks which accelerate the creation of software applications. The success of this methodology depends on factors such as the scope and size of the project. Several management techniques are optimized in order to facilitate fast delivery. These optimized techniques are time boxing, iteration prototyping. The performance and functionality have to be compromised in the implementation of this methodology in order to deliver it within a short period of time and make it easy to maintain.
Iteration involves developing a system through repeated cycles which allows the developers to improve the system as they learn from mistakes committed in previous versions through the refining process. This usually goes hand in hand with prototyping. Time boxing management technique focuses on delivery more than anything else.
Iteration involves developing a system through the various steps then subjecting it to potential users to determine its effectiveness and if any deficiencies are identified the cycle is repeated to refine it. This helps the developers to improve it and the cycle is repeated until it is almost perfect. Time boxing gives more emphasis on the delivery which may cause other important elements to be overlooked.
The main idea behind the adoption of this methodology is to accelerate the delivery process and overcome problems in traditional methods where the process took a longer time. The systems developed through these traditional methods did not meet the requirements and were therefore unusable. RAD has four phases namely requirements planning, user design, construction, and the cut-over phase.
The real work of program development is done in the construction phase. The users of the system still have an opportunity to participate in the process. They are allowed to suggest improvements or changes as the reports are developed. The main tasks carried out in this phase are coding and application development, programming, unit integration and testing of the overall system. The final tasks are conducted in the cut-over phase and these are data conversion, system testing, changeover process and user education and training. This process delivers a working system in a very short time as compared to the other traditional methods.
The RAD rapid application development has the ability of delivering quality systems within a very short period of time. This methodology is also capable of delivering portable systems. The shortcoming experienced is the limited number of features in some systems because of the accelerated development.
To enhance the performance of this methodology and increase the delivery speed the project is broken down into several tasks. Several management techniques are also applied optimally to achieve maximum results. Prototyping, time boxing and iteration are the commonly used techniques. Moreover, functionality and performance are usually compromised so that the systems are delivered promptly and to simplify the maintenance task.
The overall process is broken down into several tasks which accelerate the creation of software applications. The success of this methodology depends on factors such as the scope and size of the project. Several management techniques are optimized in order to facilitate fast delivery. These optimized techniques are time boxing, iteration prototyping. The performance and functionality have to be compromised in the implementation of this methodology in order to deliver it within a short period of time and make it easy to maintain.
Iteration involves developing a system through repeated cycles which allows the developers to improve the system as they learn from mistakes committed in previous versions through the refining process. This usually goes hand in hand with prototyping. Time boxing management technique focuses on delivery more than anything else.
Iteration involves developing a system through the various steps then subjecting it to potential users to determine its effectiveness and if any deficiencies are identified the cycle is repeated to refine it. This helps the developers to improve it and the cycle is repeated until it is almost perfect. Time boxing gives more emphasis on the delivery which may cause other important elements to be overlooked.
The main idea behind the adoption of this methodology is to accelerate the delivery process and overcome problems in traditional methods where the process took a longer time. The systems developed through these traditional methods did not meet the requirements and were therefore unusable. RAD has four phases namely requirements planning, user design, construction, and the cut-over phase.
The real work of program development is done in the construction phase. The users of the system still have an opportunity to participate in the process. They are allowed to suggest improvements or changes as the reports are developed. The main tasks carried out in this phase are coding and application development, programming, unit integration and testing of the overall system. The final tasks are conducted in the cut-over phase and these are data conversion, system testing, changeover process and user education and training. This process delivers a working system in a very short time as compared to the other traditional methods.
The RAD rapid application development has the ability of delivering quality systems within a very short period of time. This methodology is also capable of delivering portable systems. The shortcoming experienced is the limited number of features in some systems because of the accelerated development.
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