Flow of Logic vs. Flow of Control

Question

I have a series of statements on Sequence Diagrams, and don't know which is false:

Sequence Diagrams:

• Sequence Diagrams consistent of a sequence of messages flowing from one object to another

• Sequence Diagrams are a type of interaction diagram that emphasise the time ordering of messages

• Sequence Diagrams are used to visualise the order of messages in a system

• Sequence Diagrams show the flow of control from one activity to another

From my understanding the flow of control is to do with decisions, loops and the sequence. What is the difference between the flow of control and flow of logic? Or are these the same?

Answer 1

Important point is what is controlled. In Sequence Diagram, it is entity (object) and message.

Then, you may easily see the top three statements are for Sequence Diagram because they all talk about message.

As the last statement says control from one activity to another, it is not talking about control of either of them. Rather it mentions activity, so that this is an explanation of Activity Diagram.