i have given below screnario.and i have not understood below words.it is belongs to step load pattern.
"If the total test duration is shorter than the time that is required to step up to the maximum user load, then the test stops after the elapsed duration and does not reach the Max User Count target"
1)what does it mean and what is time that is required to step up to the max use load
2)what is elapased duration
explain me in detail.