intergration testing includes bothe functional & non 
functional tetsing as per the requirement of application

No it will not include Non Functional testing because 
intergration testing is done in Development environment, 


Sysytem Intergation Testing is done by Testers 


Here all we get confuse integration is different from 
System interation

Integration test doesnt include non functional test.
Integration testing is done after unit testing. It is 
performed by dev team they jus  integrate the individual 
modules to validate how the application is working & how is 
the data flow between the modules when they r interconected.

Non functional tests are, 
    * Baseline testing
    * Compatibility testing
    * Compliance testing
    * Documentation testing
    * Endurance testing
    * Load testing
    * Localization testing and Internationalization testing
    * Performance testing
    * Resilience testing
    * Security testing
    * Scalability testing
    * Stress testing
    * Usability testing
    * Volume testing
    * Failover testing
which of course will not come under Integration testing. Right?