Where can I understand what the fields in FIM Syncronization Statistics mean and are explained?

Hello,

We are new to FIM and just getting into it. 

Where can I understand what the fields under the Sync Stats in the Sync Server Manager under a Management Agent Operation mean and are explained?  For example, what does Filtered Disconnectors, Connectors with Flow Updates, and Export Attribute Flow mean and where is this explained? 

Cause we are new, Im just looking for the very basic conceptual explanations here.

Thanks in advance.

Thanks for your help! SdeDot