Transaction in Interaction
Transactions are composed of one or more actions between the initiator and the target.
For example, there are 2 actions of read-request and read-report in a read transaction.

| Interaction Role | Description |
| Client(Initiator) | ◦ Initiating/performing the interactions with other server clusters |
| Server(Target) |
◦ Recipient of the interaction ◦ Holding values for attributes, commands, and events. |
