Question

4.Why is it important for a designer to draw an Activity Diagram before building the system?(50-70 words）

5.Analyse the impact of the system in terms of technological, social “or” economic aspects (200-500 words). Provide 2-5 references.

Answer 1

4.

Activity Diagram captures the dynamic behavior of the system. Other four diagrams are used to show the message flow from one object to another but activity diagram is used to show message flow from one activity to another.

Activity is a particular operation of the system. Activity diagrams are not only used for visualizing the dynamic nature of a system, but they are also used to construct the executable system by using forward and reverse engineering techniques. The only missing thing in the activity diagram is the message part.

It does not show any message flow from one activity to another. Activity diagram is sometimes considered as the flowchart. Although the diagrams look like a flowchart, they are not. It shows different flows such as parallel, branched, concurrent, and single.

The purpose of an activity diagram can be described as −

• Draw the activity flow of a system.

• Describe the sequence from one activity to another.

• Describe the parallel, branched and concurrent flow of the system.

5.

NOTE: In order to answer this question, you would need to give a brief introduction of your system. I need to know about the system before writing its impact.