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Software is a fundamental part of any computer system. Generally this component is the one that implements all the applications in the computing process. The development of such software entails a disciplined approach that may be accomplished in a number of ways. RAD Rapid Application Development is one such way that is considered as a software production methodology.
Generally this approach is distinct in that it heavily relies on modeling to quickly implement the required software products. Such models or prototypes as they are also known will represent the actual and proposed systems. This offers clarity for both the developer and user of such a system who can understand better the processes when they are prototyped. Moreover the process is iterative in nature.
These iterations give the user and developer an opportunity to closely liaise in order to clearly represent the functional components of the project. Generally this methodology compromises functionality and performance. This is exchanged for a faster development process. In fact the phases within such a process are time-boxed. This involves a typical assignment of definite time frames in which each phase must be accomplished.
Therefore time in this approach is considered more important than the quality of the product.Generally RAD consists of four main stages. As a common discipline in software design each of these phases has definite deliverables. This contributes to the need to implement a systematic approach to such a procedure. Moreover each stage can be assigned a viable duration that must not be exceeded.
Most importantly for this method is the underlying proposition that faster is better. Therefore the time boxes here are a vital feature within the methodology because through them every stage can be strictly scheduled. Furthermore the deliverables that are time boxed must be accomplished without regard for finer detail. In this way the rapidity aspect is enhanced. Generally this will be implemented throughout the main stages of this methodology including the business process and data modeling application generation which also includes the testing and turnover.
Generally every step has an associated deliverable and each of them will be tested singularly before being integrated to implement the system and acceptance tests ahead of the turnover. Typically these tests are carried out on the unit and system levels to ensure that the integration carries on successfully. Basically business modeling as the initial phase here describes the business functions of such a system.
This entails a collection of business flows describing the current system. Once this has been accomplished then a proposed system can be derived. This is after an assessment of these shortcomings of the current system. This can be achieved through the data modeling process. Within this stage the data objects must be well defined.
The procedures will eventually be modeled at the process model stage. In this way the identified data objects can be utilized in the proposed system framework which is generally the software. Therefore the data business and process models can be incorporated into such an application at the application generation step. Often times the computer aided software engineering (CASE) tools can be applied at this point to expediently generate the prototype based on certain requirements. Ultimately RAD Rapid Application Development includes various aspects that can ensure faster delivery of any software product
Generally this approach is distinct in that it heavily relies on modeling to quickly implement the required software products. Such models or prototypes as they are also known will represent the actual and proposed systems. This offers clarity for both the developer and user of such a system who can understand better the processes when they are prototyped. Moreover the process is iterative in nature.
These iterations give the user and developer an opportunity to closely liaise in order to clearly represent the functional components of the project. Generally this methodology compromises functionality and performance. This is exchanged for a faster development process. In fact the phases within such a process are time-boxed. This involves a typical assignment of definite time frames in which each phase must be accomplished.
Therefore time in this approach is considered more important than the quality of the product.Generally RAD consists of four main stages. As a common discipline in software design each of these phases has definite deliverables. This contributes to the need to implement a systematic approach to such a procedure. Moreover each stage can be assigned a viable duration that must not be exceeded.
Most importantly for this method is the underlying proposition that faster is better. Therefore the time boxes here are a vital feature within the methodology because through them every stage can be strictly scheduled. Furthermore the deliverables that are time boxed must be accomplished without regard for finer detail. In this way the rapidity aspect is enhanced. Generally this will be implemented throughout the main stages of this methodology including the business process and data modeling application generation which also includes the testing and turnover.
Generally every step has an associated deliverable and each of them will be tested singularly before being integrated to implement the system and acceptance tests ahead of the turnover. Typically these tests are carried out on the unit and system levels to ensure that the integration carries on successfully. Basically business modeling as the initial phase here describes the business functions of such a system.
This entails a collection of business flows describing the current system. Once this has been accomplished then a proposed system can be derived. This is after an assessment of these shortcomings of the current system. This can be achieved through the data modeling process. Within this stage the data objects must be well defined.
The procedures will eventually be modeled at the process model stage. In this way the identified data objects can be utilized in the proposed system framework which is generally the software. Therefore the data business and process models can be incorporated into such an application at the application generation step. Often times the computer aided software engineering (CASE) tools can be applied at this point to expediently generate the prototype based on certain requirements. Ultimately RAD Rapid Application Development includes various aspects that can ensure faster delivery of any software product
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