Question about definition of scopes

[kaz0416]

Hello, I have one question regarding the policy scopes.

According to the Contributors Manual, 2.2 Policy scopes and bindings, seven scopes are defined. I could successfully bind policies to contract.negotiation, transfer.process and catalog and could see the connectors were able to evaluate the information in the DAT correctly. Nonetheless, I cannot understand how other four scopes work. Could you explain the difference between other theee scopes (contract.negotiation, transfer.process and catalog) and how I can bind these scopes?

I really appreciate if someone answers my question!