The seven mudas of labour productivity.

The seven mudas allows you to classify losses and compare or benchmark workstations, products and plants. Work content is classified in 4 different stages containing seven mudas. Stages: 1. Organisation 2. DT versus LT 3. Red green chart. 4. Four mudas of methods improvement. Productivity losses or mudas will become clearly visible to everyone. The 7 Mudas is a first in its kind benchmarking model which qualifies losses instead of quantifying like conventional DFMA does. The 7M can be seen as a advanced value straem mapping system. (1)Organisation: Used and unused resources. Idle time or losses due to a bad organisation (blue)”. (2)Dt versus LT: Hand labour en layout. (3)Red/ Green:    The perfect product "Green", losses due to product design "Orange", losses due to plant design "Red"   (cfr. Red / Orange / Green stoplight). These categories are reported in details and totals to make optimisation evident. (4)Mudas: Detail listing of product and plant losses.  This will allow management to communicate with engineers about the obtained measurements and the possible opportunities.

Muda            Course Muda 1 Tempo Muda 2 Idle Time Muda 3 Product complexity or design efficiency Muda 4 DFA - design for assembly Muda 5 DFM - design for manufacturing Muda 6 IP - Intermediate places Muda 7 S&B - Steps and bends