Coursework Assignment 2 Modelling: Analysis Class Diagram

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Modelling
Part 1:
* Analysis Class Diagram
Analysis Class diagram illustrates the inter-relationships, operations, and attributes of classes in a system. In the analysis stage, it can be used to decompose the problem domain into comprehensible elements which are easy to understand. They can also be used to visualize, specify and document structural features of a model. It is also used to show inheritance hierarchy among classes and classifiers. Class diagrams also show structure and behavior of classes. Consequently, they can also be used to define relationships between classes and classifiers. They show the common classifier roles and responsibilities that dictate the behavior of a system.
* Communications Diagram
Communication diagrams show all the communication between applications and the metamodel entities. Communication diagrams though similar to sequence diagrams, they appear in the free form and help designers to show how each element interacts with each other. They chronologically show the flow of messages from one object to the other.
Part 2:
* Sequence Diagrams
The flow of logic is visualized and modeled by a sequence diagram. It illustrates how objects interact and with one another in a time sequence. Sequence diagrams show how classes and objects exchange messages sequentially to achieve a functionality. Sequence diagrams help analysts and designers to understand the relationships of different objects and classes operate and their communication sequences. The messages relayed by each object or class is shown with its expected corresponding response thus demystifying how the system works.
Part 3: Evaluation
A CASE tool offers a simulation of a model before implementation. The CASE tool helps to analyse World Wide Tours scenario by creating simulations of possible ways th...