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System Testing and System Integration Testing
System Testing:- After integrating the components into a system, Checking the
functional, Non-functional requirements and usability of an application or system is
called system testing.
E.g.:- In G-mail application Inbox, Sent Mail, Trash, Compose Mail all are the different
components .Here we check whether all the components are functioning according to
the requirements are not.
System Integration Testing:-
Testing an application or system by combining all components or
modules and checking its dependency and workflow among the components is called
system integration testing.
E.g.:- Let us consider an ATM application .When we insert a card in an A.T.M machine
for transaction, first it checks whether the card is valid one or not. If valid then it
displays the Account details and current balance of the account holder after entering the
Secret PIN as per customer or user requirement. Here A.T.M machine is integrated with
Bank database and data is retrieved from the database. Here we test the dependency and
work flow of the A.TM machine and Database.