FDS_CLASS and FDS_CLASS_VERSION are defined by Oracle or by third-party vendors for each individual Heterogeneous Services agent and version. Oracle Heterogeneous Services concatenates these names to form FDS_CLASS_NAME, which is used as a primary key to access class information in the server data dictionary.
FDS_CLASS should specify the type of non-Oracle data store to be accessed and FDS_CLASS_VERSION should specify a version number for both the non-Oracle data store and the agent that connects to it. Note that when any component of an agent changes, FDS_CLASS_VERSION must also change to uniquely identify the new release.
Note:
This information is uploaded when you initialize each connection.