The launch of the MIT International Motor Vehicle Program (mit-imvp) marks the beginning of the research phase that ultimately produced the Lean framework. Under the direction of daniel-roos, with james-p-womack and daniel-t-jones as lead researchers, the IMVP assembled a team of 50+ senior scientists to conduct the first large-scale comparative study of global automotive manufacturing.
Significance in the Transmission Chain
This event is the origin point of the Womack-Jones intellectual project. Before IMVP, the superiority of Toyota's production methods was known within the industry but had not been systematically documented, quantified, or translated for Western audiences. IMVP's comparative research — studying dozens of assembly plants across the US, Europe, and Japan — generated the empirical foundation for the claims in machine-that-changed-the-world.
The naming of "lean production" by john-krafcik (see krafcik-lean-production-origin) emerged from IMVP working papers produced during this research period. The term, and the framework it named, would not have existed without the program's launch.
Scale
IMVP was a $5 million, five-year program (approximate; unverified). The multi-year, multi-country structure was essential to the research's credibility: it allowed researchers to separate Toyota's practices from cultural or national factors and demonstrate that the production system itself drove performance differences.