System Testing

         

         
         
        
         
          System Testing:

• It is end-to-end testing ,testing where in testing
  environment is just like in production environment .
• Navigate through all features and check whether
  end features are working or not.
• Testing the overall behavior of an application by
  simulating an environment which is just by simulating
  an environment which is just like the production
  environment.
• To do system testing we have to identify end-to-end
  scenario.
• It is the test conducted by navigating through modules.
• system testing is performed on the entire system in the
  context of a Functional requirement specification
  or system requirement specification.
• It is also intended to test beyond the bounds defined in
  system requirement specification.
  
    Example:In a Bank
    Fist time :
    Loan amount :20000
    Rate of interest =2%=400
    processing  fee:250
  
  while repaying the loan he has to pay 20650
  
    second time :
    Loan amount :20000
    Rate of interest :400
    No processing fee
    Repayable:20400
  
     steps:-
•    Login as x and apply for 20000
•    After applying ,Logout
•    login as manager then approve the loan for x
•    logout as a manager
•    login as x and check the balance and it should be
     20000
•    come back to amount balance ,20000 is there.
•    logout as x
•    login as database access and change the server time to
     next month
•    logout as data base access 
•    login as x and check the loan amount to be repaid as
     20650
•    login as y and transfer 650 rs to x
•    logout as y
•    login as x and check the balance 20650, repay loan

•   Here all modules like manager module ,
   savings,amount transfer,Data base access,loan
    module are working properly.
•   It is like master checkup.
•   For example :when many users use the same
    application system become slow or clash due
    to load.
    If the load on the system is resistible then
    we can say whole system is working properly.
•   what ever test is done on the overall
    system it is called system testing or
    end -to-end testing.