Abstract
The Great East Japan Earthquake on March 11, 2011, did catastrophic damage into vast areas. In this article, we report our efforts to visualize schedule for a production recovery project in a damaged factory. We tried to model and to visualize a schedule by integrating various types of schedules planned in the project. Concepts of both multi-viewpoints WBS (Work Breakdown Structure) and OR-type precedence-successor relationships are devised in order to manage the complexity of both manufacturing processes and their precedence-successor relationships. Moreover, an IT system with these concepts had been developed rapidly, and started actual operations. Finally, production recovery was successfully achieved in a short term.
