MODAPTS® History

MODAPTS® History

Company History

Chris Heyde

MODAPTS® was developed by Mr. G. Chris Heyde of Heyde Dynamics, Pty. Ltd., 36 Moore Street, Lane Cove, in NSW 2066 Australia. The copyright for MODAPTS® was assigned to the International MODAPTS® Association in 1990.  

Methods-Time Measurement (MTM-1, MTM-2)

Unlike the MTM and MOST standards, MODAPTS® uses a MOD as its basic unit of measurement (1 MOD = 0.129 seconds). However, like Basic-MOST, MODAPTS® uses a coding technique that consists of a letter and an integer (all but the number “1”), where the integer represents MODS that can be easily added to determine a coded task's time.

The original MODAPTS® data was developed by Mr. G. C. “Chris” Heyde. He originally learned the MTM-1 and MTM-2 methods in the 1950s, but he wanted to develop a new technique that was simpler to use and apply. Heyde wanted a system that was easy to memorize and contained only whole integer time values. During MODAPTS® system development, Mr. Heyde tested every conceivable method of presenting predetermined time data for ease of use, ease of learning, and consistency of results.

In 1966, MODAPTS® Predetermined Time System was introduced.  The system received immediate acceptance, and today ranks among the most popular in the world.

Why Choose MODAPTS® for Setting Work Standards?

Unlike other PDTS systems that concentrate on analyzing activities based on the movement of objects, MODAPTS® is based upon the body part moved to complete a task. 

MODAPTS® means:

  • Easy to learn and apply
  • No stopwatch required
  • No performance rating
  • Methods analysis sensitive
  • Ergonomically sensitive
  • Inexpensive, with no royalty fees
  • Easy-to-understandable production standard


MODAPTS® is embraced by workers, managers, and unions. In addition to being recognized by the U.S. Department of Labor as a preferred system for developing fair work standards for rehabilitation facilities, MODAPTS® complies with MIL-STD 1567A—specifications developed by the Department of Defense for work measurement programs for defense contractors.

Why Choose to Use MODAPTS® for Setting Work Standards?

The average supervisor can use MODAPTS® to calculate standards, and the average employee can understand MODAPTS® concepts.