Define load, performance and stress testing

Answer Posted / ramachandra naidu

Load Testing:
-------------
--> It is the process of creating demand on a system or
device and measuring its response.
--> It generally refers to the practice of modelling the
expected usage of a software program by simulating multiple
users accessing the program's services concurrently.
Performance testing:
-------------------
--> Validates that both the online response time and batch
run times meet the defined Performance requirements.
Stress Testing:
---------------
--> Testing conducted to evaluate a system or component at
or beyond the limits of its specified requirements to
determine the load under which it fails and how.
--> Often this is performance testing using a very high
level of simulated load.

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