Service Request Management Vs Case Management

Content

Hello All, 

 

Actually, I am a little bit confused about the difference between these 2 features (Service Request & Case) in service module. 

I understand that the service request is the main entity to be used in the service module but when to use the case management ? is there any standard scenario that I should use case management for it ? Also, what are the business cases that I may use both of them together ? 

 

Thanks in Advance, 

Version

21A