How many ways you can call a BPEL Process

A BPEL Process deployed on the Process Manager can be invoked in 3 different ways as mentioned below.

a. Using the BPEL Console's Initiate tab, this is where you will mention about the xml data to be passed into the bpel process. You can define the input in 2 ways either in XML format or HTML format.
b. Using the Java API published by Oracle BPEL Process Manager
c. Using the Web service/Soap Interface using endpoint of the process.
d. Creating the web service client using the WSDL file of the process.