I'm researching on Enterprise Data loss prevention (EDLP),please explain detail as much as possible and please provide the reference.

1. what system metrics would you use and how would you use them? please give some examples for transaction volumes, user counts, availability and response time.

2. how would you use and implant Deployment model such as cloud/software-as-a-service, internal hosting, client devices, etc. forEDLP?

3. Do you have any sample of Useful architecture viewpoints: a context diagram for business epics, a component-connector chart for software application integration, an "allocation" diagram for server infrastructure?