Labels:text | screenshot | circle | number OCR: Messaging Arcs Inheritance Message with Note that there is reply no direction indicator for inheritance. Message with reply and timeout. Shorthand form: Joining bar can be any of these: Message without Union, no concurrency" <-..... Copy data, no concurrency Copy data and code. Unscheduled concurrency queded message. Copy data, concurrency Different data and code, LO Arcs Unidirectional, bidirectional, or The action of a joining bar can be delayed Sitenup! I/O arcs; until run time by a "sub-node" qualifier. Nodes can be individual, or Composite-node. Figure 2: Messaging and inheritance elements,