You searched for: “parameter
parameter, parameters
1. A variable quantity or value; specific uses include physics, a quantity that is used in a relationship involving several quantities and is held fixed, but in general it may be allowed to have different values.
2. In computer programming, data that can take different values at the execution time of a function, procedure, macro-instruction, or subroutine.

Only a specialist in mathematics or computing might know precisely what it means.

When the word does have a discernible meaning, it is usurping the place of a far simpler and more straightforward term; such as, boundaries, limits, or guidelines.

parameter, perimeter
parameter (puh RAM i tuhr) (noun)
A characteristic element or factor; a quantity or quality that gives a particular form to the thing it characterizes: Ralph told the group that they would discuss the main parameter of the project at their next meeting.
perimeter (puh RIM i tuhr) (noun)
1. The outer limits, edge, or boundary of an area: The perimeter of the pasture was marked with a fence.
2. A fortified strip or boundary usually protecting a military position: The soldiers were defending the perimeter of their camp for several days.

The parameter of Steve's job was clear; that is, he was to build a new fence marking the perimeter of the pasture.