Judging from this question, it seems that different people/sources have different definitions for measurements like amplitude.
I personally encountered people disagreeing on the definition of the rise/fall time, some stating that it should be computed using 10% and 90% of the amplitude, other stating that it should use the peak-to-peak values.
Since this can lead to confusion at best (thinking about contract issues) is there some sort of recognized standard? Or should I explain how each measurement is computed?