What does baseline measure mean?

baseline measure meaning in Business Dictionary

a detailed dimension of process functionality before any input modification happens. This allows a clear dimension associated with viability of an applied enhancement or solution to a known problem. The information may also be used as a regular for calculating future effectiveness in the act to help recognize any difficulty because it occurs. This means, "the end result need to have already been xyz but had not been; for that reason, there needs to be an issue occurring in today's system".