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Catalysis Process Model

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Catalysis Process Model

Pooley in [23] define catalysis as a methodologies of any weight based on the combines experiences of IT professional in

different domain, adapting and borrowing much from other method. Catalysis advocates a tailoring of the concept to suit the

problem at hand. Basically, Catalysis is based on systematic business-driven development of component-based systems. It also

based on UML (Unified Modelling language). Catalysis process model based on three constructs, three level of modelling and three

defining principle.

3.1. The catalysis Approach

The catalysis approach are based on three construct consist of component, type and refinement [23]

• Component - Specify behavior of a group of object
• Type - Specify …show more content…

Apart from that, we can say that The RAD (Rapid

Application Development) model prescribes certain phases in software development and also as a set of tool that allows speedy

objects development, graphical user interface, and reusable code for client/server applications [8].

4.2. The Objective of Rapid Application Development (RAD)

The objective or main purposes of Rapid Application Development (RAD) are the following:
• To ensure user need can be filled effectively with low maintenance cost (Low Cost).
• To ensure high quality system meet the business requirement when it begin operation (High Quality).
• To ensure the products can be developed faster with the short period of time (High Speed)
• Aims to build a working system rapidly [10]

4.3. Factor for Rapid Development

"Quick and dirty" process does not mean for fast development achievable. There should not be any obstacle between rapid

developments with product quality. There are several factor contribute to the victory of rapid development namely by improving

higher quality product and rapid delivery. The main factors of rapid development …show more content…

4.6. The disadvantages of Rapid Application Development (RAD)

• Dependency on technically strong team - It only works well when high skilled engineers and experienced developers and

system analyst are available
• User involvement throughout the life cycle - It required full commitment from the user to achieve the targeted prototype

in the given time frame. If the user fails to follow the time frame, the model may fail.
• It is only suitable for projects that require shorter development times.
• Only suitable for system that can be modularized.
• Requires highly skilled developers/designers.
• High dependency on modeling skills
• Not applicable to implement for cheaper projects as cost of modeling and automated code generation is very high.

4.7. Situation that most suitable to be used of RAD

• Rapid Application Development (RAD) model is useful for the projects with clear requirement, reasonably stable and well

understood. When the client demands software for the existing system within short period of time increment by increment then we

can adapt the Rapid Application Development (RAD) model. It also can be applied successively to the complex and very

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