The high-level graphical/textual description of the operational concept.

Programs such as these could form the basis for intelligent scientific instruments that monitor physical systems based upon high-level behavioral descriptions.

Pseudocode is an informal high-level description of the operating principle of a computer program or other algorithm.

Due to the nature of complex systems, the high-level description will often be completely different from the low level one.

In business, corporate strategy is a high-level description, a list of who does what jobs is a low level description.

Climate is a high-level description of the actions of the atmosphere and oceans.

These are typical features of high-level and low-level descriptions.

Program skeletons are sometimes used for high-level descriptions of algorithms.

A language to compile local-interaction instructions from a high-level description of an origami-like folded structure.

This video provides a nice high-level description of deep packet inspection and its use in Egypt: