Ronald M. Lesperance

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Reducing variation in the assembly of a vehicle body is a critical element in improving its quality. Assembly plants have dimensional-management teams, who monitor variation, respond to "variation crises," and continually reduce variation when there are no crises. These teams have, in the past, not kept archival records and have not shared solutions with(More)
The General Motors Variation-Reduction Adviser is a knowledge system built on case-based reasoning principles that is currently in use in a dozen General Motors Assembly Centers. This paper reviews the overall characteristics of the system and then focuses on various AI elements critical to support its deployment to a production system. A key AI enabler is(More)
The General Motors Variation-Reduction Adviser (VRA) is an experience-management system currently in use in most GM assembly centers. Its purpose is to capture and communicate problem-solving events from various quality-control activities. The most important prerequisite to the success of the VRA project was having a community that was already sharing(More)
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