Abstract
This paper applies and verifies a new paradigm, "Industrial Teamwork Dynamics (ITD) : relationship between the teamwork level and the team productivity of work teams" in the Japanese automobile related parts maker using Group Dynamics of Social Psychology for group behavior in Industries. The teamwork level was defined as "closeness" that is a range between the positivest and negativest of factor loading values on first principal component axis to the all Teamwork Determinants (TD, K=12) extracted by Principal Component Analysis (PCA). The team productivity was confirmed as efficiency, achieved ratio of actual work time to standard work time in each work team of this maker. ITD certifies good teamwork level (narrow range) of the work team produced high efficiency and bad teamwork level (wide range) had low efficiency. Especially cohesiveability (people orientation, K=6) of TD was clearer in this trend than another TD, workability (task orientation, K=6) based on statistical significances. Morever, it certifies difference of awareness to TD between high (n=99 persons) and low efficiency work teams (n=100 persons) according to G-P analysis.