Transmission category
A transmission is made up of interchanges, so a Transmission type is made up of Interchange types.
An Inbound Transmission type is made up of Inbound Interchange types. For example, an X12 Inbound Transmission type is made up of X12 Inbound Interchange types and a Partner X12 Inbound Transmission type is made up of Partner X12 Inbound Interchange types.
The type Partner represents a generic trading partner. If you are trading with different partners who use different subsets of the X12 standards, you might want to rename the Partner type. You can then add new types to define the additional trading partners.
The components of Outbound Transmission types are similar to the components of the Inbound types.