> Is there any way to implement Rule management functionality through VCenter plugin?
This is the forum for the Web Client SDK, so I assume you are asking to implement Rule management through a UI extension of the vSphere Web Client.
I am not familiar with the SOAP API used to communicate with Auto deploy server, but the basic answer is that anything is possible since this communication will take place in a Java service running on the Web Client server. See the diagram below if you are not familiar with the Web Client architecture: your Java service can use any remote access method to access other back-end servers or services, it is your own implementation.