Methods-Time Measurement (MTM) is a predetermined motion time system that is used primarily in industrial settings to analyze the methods used to perform any manual operation or task and, as a product of that analysis, to set the standard time in which a worker should complete that task.
MTM was released in 1948 and today exists in several variations, known as MTM-1, MTM-2, MTM-UAS, MTM-MEK and SAM-analysis. Some MTM standards are obsolete, including MTM-3 and MMMM (4M).