Ans:Registry is a place where you register your WSDL’s. So you can Register your SAP & non-SAP (3rd party services – WSDL’s) here.
If you are looking to create a WSDL for 3rd party, you cannot.
Checkout the Weblog “Publish services from PI 7.1 to the Service Registry”
We dont have any service registry in XI 3.0 to store services or to use existing services ,the service registry concept came in PI7.1.
There is no service registry but you can publish your wsdl in uddi server. Check these blogs
Thanks for the blog but is that any different between the service registry with UDDI that the blog mention beside publish the WSDL?
There is no difference between Service Registry and UDDI,Service Registry its based on UDDI 3.0 ,SAP using same UDDI server to store the services,but they named as Service Registry.
Removal of Visual Admin (from 7.1), and the need to give it a look of a package (SOA) service registry may have been showcased as separate entity….as mentioned above Service Registry is nothing but UDDI….for more info refer the Features section of this help section: http://help.sap.com/saphelp_nwpi71/helpdata/EN/45/b4ca147d2952f5e10000000a1553f7/content.htm