Touchpoint concepts
You can refer to information provided here to learn more about different touchpoint concepts.
In essence, the Touchpoint protocol is a provisioning protocol which gives access to IBM Security Directory Integrator Connectors and AssemblyLines through HTTP. When you create a Touchpoint, you get a "proxy" through which to work with a remote system. Once the Touchpoint is created and configured, you only send HTTP requests and you are completely isolated from the specifics of that system.
The sections below provide details about the different concepts associated with Touchpoints.