It can be a template or model which can be used to generate things or parts of a thing, especially if the things that are created have enough in common for the underlying pattern to be inferred, in which case the things are said to exhibit the pattern.
The most basic patterns are based on repetition and periodicity. A single template, or cell, is combined with duplicates without change or modification.
In addition to static patterns, Simple Harmonic Oscillators produce repeated patterns of movement.
AIR GERS 3.0