For the naming of the DLL file usually the identifiers of the host system to be served or the interface in general are used.
Ideally in such a way that the designation remains unambiguously identifiable and also speaking. The designation of the namespace should ideally be kept identical.
To ensure that the source/origin of the interface is known, it should always be preceded by a company name at best.

Types are ideally given a speaking type name. Since the namespace is already defined in the type library, the composite type name then results as follows:

company.namespace.typename

Example: Pranke.Sap.Invoic01 or optionally with a child namespace to define subtypes for example.

company.namespace.subnamespace.typename

Example: Pranke.FXL.Invrpt.Stock and Pranke.FXL.Invrpt.Movement.

Note: Use the type description to give hints about the message direction in or out.