Hi Morse,
The details schema for both historic and non historic data is documented in the general help.
Go to the operation manger WebUI Control Center-> Help-> General Help-> Contents->Database Schema.
Under this you can find the following.
Database schema for DataFabric Manager nonhistoric data
Database schema for DataFabric Manager historic data
Relationship among fields of various database views
So the "Relationship among fields of various database views" give the relationship between various views.
For convenience I am giving the URL, replace it your dfm server IP
http://<dfmserverIPorHostname>:8080/help/dfm.htm#%3E%3Epan=2
Regards
adai