Component Assembly Model

1.   Component based assembly model uses object oriented technologies. In object oriented technologies, the emphasis is on creation of classes. Classes are the entities which encapsulates data and algorithms.

2.   In component based architecture, classes (i.e. components required to build application) can be used as reusable components.

3.   Software development can be done using iterative approach.

4.   In CBD model, multiple classes can be used. These classes are basically the prepared components.

5.   The model works in following manner –

                I.      First identify all the required candidate components, i.e. classes with the help of application data and algorithms.

               II.      If these candidate components are used in previous software projects then they must be present in the library.

              III.      Such pre existing components can be extracted from the library and used for further development.

              IV.      But if the required component is not present in the library then build or create the component as per requirement.

               V.      Place this newly created component in the library. This makes one iteration of the system.

              VI.      Repeat step I to V for creating n iterations, where n denoted the number of iterations required to develop complete application.

Advantages of Component Assembly Model 

1.   This model emphasizes on reusability of software components. This reusability of component reduces the development cycle time by 70% and project cost by 84%.