What are the main uses of the transaction in the CICS?

The following are some of the main uses of the transaction in the CICS:

• A transaction is a unique identifier that is mainly used to execute or start a particular task.
• A transaction is the type of the four characters entry and there will be no duplicates allowed particularly in the transaction names.
• A transaction can be triggered concurrently from the different systems but not from the same systems.
• A transaction will mainly have one to one or many mappings to the program that basically needs to be executed when the transaction trigger is taken place.