difference between functional testing and system testing? [closed]

manpreet Best Answer 2 years ago

I heard that system testing has two types

1)functional Testing 2)Non functional testing

But later in another website i have seen below statements

In the types of functional testing following testing types should be cover:

Unit Testing
Smoke testing
Sanity testing
Integration Testing
Interface Testing
System Testing
Regression Testing
UAT

I am confused, Please clarify me that whether the system testing includes functional or functional testing includes system testing and the sequence of these testings(functional is performed first or system)

Thanks