user acceptance testing vs system testing

1-System Testing: System testing is finding
2defects when the system undergoes 
3testing as a whole, it is also known as end
4to end testing. In such type of testing,
5the application undergoes from beginning till the end.
6-UAT: User Acceptance Testing (UAT) involves
7running a product through a series
8of specific tests which determines
9whether the product will meet the needs of its users.