Boundary Value Definition

Boundary value — meaning to give a limit or edge or boundary which might probably lie in between any given range or set of values. Important would be the boundary values that could be put into the subjects of study right from mathematics to engineering to computer science. In mathematical context, the boundary values are the very limit or limitation of any function or equation. It assures the engineers that they design within the boundary values issued in regulation to safety, performance and the specification.

Boundary value is a good application in testing and validating tool. In this regard, critical points or extremes of the input space of the system are identified, so as to make sure of the good behavior of the software in any probable case. For instance, with the view of bugs or weaknesses at the boundaries of the defined ranges, the input data under test is reviewed. On the other hand, the boundary value is the border, a constraint, the critical point in general in a given context and is hence another crucial point of reference for analyses, designs, and evaluations.