If you use Business Glossary approval in a domain with Kerberos
authentication, you must enter the user name and password for the Model
Repository Service in the Analyst Service. The user name and password are not
mandatory when you create the Analyst Service, but they are required for the
approval workflow to work in a domain with Kerberos authentication.
To ensure that the approval workflow works in a domain with Kerberos
authentication, perform the following steps:
In the Administrator tool,
Services and Nodes
In the Domain Navigator,
select the Analyst Service.
Edit the Model Repository
Edit Model Repository Service Properties
box, enter the user name and password for the Model Repository Service.