How to works mechanism of fetch deltas into app

Eugene Bychkov, Matt Marum regards from Mexico.

I have a question, exists some diagram that explain the how to works mechanism of fetch deltas into app?

Can you can share me this diagram or in this case explain me please point by point your workflow?

The only diagram i find is in this section 

https://support.sugarcrm.com/Documentation/Mobile_Solutions/Mobile_SDK/Mobile_SDK_Developer_Guide/#Application_Lifecycle 

Thanks a lot.