M

Market packages

Potential products or sub-systems that address specific services [as used in an ITS architecture].

Metrics

Measures used to indicate progress or achievement.

Model

An abstraction of reality. Examples: A road map is an abstraction of the real road network. A globe is a model of the world. A simulation is a dynamic model of a time sequence of events.

Module

A self-contained part of a hardware item designed as a single replaceable unit, with a specific integral electronic function. It should require no installation other than mechanical mounting and completion of electrical connection.

MOE

Measure of Effectiveness

MOP

Measure of Performance

MPO

Metropolitan Planning Organization