What does JDM mean in cars?

[StAsher]

JDM is a polysemous term with the following two meanings: 1. JDM refers to a vehicle manufacturing standard: JDM stands for Japanese Domestic Market. It refers to vehicles and parts manufactured specifically for the Japanese domestic market, and sometimes also denotes gathering places for car and motorcycle enthusiasts. Japanese-domestic market shares similar connotations with Japanese-domestic model. 2. JDM refers to a product design methodology: JDM involves early control and prediction of post-mass-production quality by applying the DMAIC process method of Six Sigma management. It reduces variations in product design and manufacturing processes, identifies issues from the production side, and through experimental data analysis, provides feedback to clients and R&D teams. This allows early recognition of potential production issues, prompt problem-solving, cost optimization, stable quality improvement, and creates a win-win situation for both parties to benefit.