regulation

adj : prescribed by or according to regulation; "regulation army

equipment"

n 1: an authoritative rule or law [syn: {ordinance}]

2: a principle or condition that customarily governs behavior;

"it was his rule to take a walk before breakfast"; "short

haircuts were the regulation" [syn: {rule}]

3: the act of regulating; "fiscal regulations are in the hands

of politicians" [syn: {regulating}]

emulation

One system is said to emulate another when it performs in

exactly the same way, though perhaps not at the same speed. A

typical example would be emulation of one computer by (a

program running on) another. You might use an emulation as a

replacement for a system whereas you would use a simulation if

you just wanted to analyse it and make predictions about it.

(1995-05-12)