This use case requires that the ADFS server in the Company B domain be configured to recognize the Company A OpenSSO Enterprise endpoint as a Resource Partner. The Company B ADFS server must be recognized as a valid Identity Provider in a circle of trust that includes the Company A OpenSSO Enterprise server as a Service Provider.
In the OpenSSO Enterprise environment:
Use the ADFS snap-in to create a new Resource Partner. The new Resource Partner must be defined using the proper name and endpoint URL.
In the ADFS-based environment:
Create metatdata and extended metadata files to define the Company B ADFS server as the Identity Provider, and the Company A OpenSSO Enterprise server as the Service Provider in a WS-Federation protocol paradigm.
Create a new circle of trust and import each Identity Provider and Service Provider to belong to this circle of trust.
This configuration currently works only if a user account with the same UPN is created in both the ADFS domain and the OpenSSO Enterprise server. This is a major constraint.