How do you show a loop in a sequence diagram?
How do you show a loop in a sequence diagram?
Below are the steps on how to represent a loop:
- Create a sequence diagram.
- Place two objects on the sequence diagram.
- Draw a message from one object to the other.
- Draw a note over the message and add a description (for example, “Messages 2 through 4 are repeated.”)
Is UML and sequence diagram same?
UML is a modeling toolkit that guides the creation and notation of many types of diagrams, including behavior diagrams, interaction diagrams, and structure diagrams. A sequence diagram is a type of interaction diagram because it describes how—and in what order—a group of objects works together.
What is Loop in UML?
The loop symbol has an appropriate representation in a construction consisting of four UML activity symbols – TASK, DECISION and two edges, where one edge leads from the TASK to DECISION and the other one leads backwards. The TASK represents the action and the decision node is used to resolve the loop condition.
What is loop fragment in sequence diagram?
An example of a Sequence diagram showing the use of a ‘loop’ Combined Fragment that signifies that a group of messages are part of a loop and occur a specified number of times. The ‘loop’ keyword is one of a list of Interaction Operators.
How do I create a sequence diagram in UML?
Start a sequence diagram
- Start Visio.
- In the Search box, type UML sequence.
- Select the UML Sequence diagram.
- In the dialog box, select the blank template or one of the three starter diagrams.
- Select Create.
- The diagram opens.
- On the View tab, make sure the check box next to Connection Points is selected.
Why do we use sequence diagram?
The sequence diagram is a good diagram to use to document a system’s requirements and to flush out a system’s design. The reason the sequence diagram is so useful is because it shows the interaction logic between the objects in the system in the time order that the interactions take place.
Which of the following is not a UML diagram?
Which of the following is not a UML diagram? Explanation: There is no UML diagram such as interface diagram.
What is frame in sequence diagram?
Frame. A Sequence Frame Notation is a graphical notation used in a UML Sequence Diagram to provide a boundary to enclose all messages and lifelines of a communication sequence. A Sequence Frame Notation is drawn as a large rectangle with a pentagon at the top left corner.
