Solid arrows with full heads are synchronous calls, solid arrows with stick heads are asynchronous calls and dashed arrows with stick heads are return messages
A message sent from outside the diagram can be represented by a message originating from a filled-in circle (found message in UML) or from a border of the sequence diagram (gate in UML).
As with all UML diagrams, comments are shown in a rectangle with a folded-over corner :
UML sequence diagram with a comment.
To relate the comment to whatever diagram elements it is about, connect them with dashed lines.
Only class messages (e.g. shared or static methods in some programming languages) can be sent to a class. Note that the text of a class is not underlined, which is how you can distinguish it from an object.
A message sent from outside the diagram can be represented by a message originating from a filled-in circle (found message in UML) or from a border of the sequence diagram (gate in UML).
As with all UML diagrams, comments are shown in a rectangle with a folded-over corner :
UML sequence diagram with a comment.
To relate the comment to whatever diagram elements it is about, connect them with dashed lines.
Only class messages (e.g. shared or static methods in some programming languages) can be sent to a class. Note that the text of a class is not underlined, which is how you can distinguish it from an object.
No comments:
Post a Comment