With the progress of technology especially computing and software the word load testing came into existence and usage.
It is a procedure to measure how a system would behave under normal or extreme conditions. Load testing determines the normal operating capacity of an application along with the issues that could arise which might lower its efficiency and how it could be rectified.
In extreme situations, load testing ceases and is replaced by stress-testing. This happens when the load in the system is beyond the expected level. This test is conducted to measure the response time of the system when subjected to extreme conditions.
The intricacy has always however been the idea of lack of precise point when load testing finally turns into stress testing. What is the specific difference between load testing and stress testing? There has always been a confusion amongst people as to the difference between the two terminologies.
With time and experience what we understand is that one is a result of too much of the other. Simply stated load testing begins the moment the system is considered to be functional. It is the measure of the performance of the system under normal conditions. As an example, load testing includes computers used in any bank as how many users try to access the same information at a given time.
The significance of load testing, therefore, includes the fact that it depicts at an early stage the errors that can occur during the usage of the program. Such errors would include things like memory failure and or system jamming.
Stress loading, on the other hand, is literally stressing the system beyond its normal functioning capacity. This could include extending the working hours of the system and or sudden increase in the number of users who are using the system at a particular time.