Design elements - UML communication diagrams

The vector stencils library "UML communication diagrams" contains 23 symbols for the ConceptDraw PRO diagramming and vector drawing software. "... communication diagrams use the free-form arrangement of objects and links as used in Object diagrams. In order to maintain the ordering of messages in such a free-form diagram, messages are labeled with a chronological number and placed near the link the message is sent over. Reading a communication diagram involves starting at message 1.0, and following the messages from object to object." [Communication diagram. Wikipedia] The example "Design elements - UML communication diagrams" is included in the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.
UML communication diagram symbols
UML communication diagram symbols, participant communication line to itself, object, note, multi object, lifeline, entity, lifeline, control, lifeline, boundary, lifeline, actor, fragment, composite object,