Abstract
AbstractUโmaintenance system means a supporting system for maintenance of production facility via ubiquitous technology, such as RFID (Radio Frequency Identification, USN (Ubiquitous Sensor Network), RTLS (Real Time Locating System), etc. Compared with conventional maintenance system including eโmaintenance system, uโMaintenance system has high potentials in many respects. However, from the system design perspective, uโmaintenance system is a complex system where many aspects should be taken into consideration. We approach the problem by systems engineering. In this paper, we focused on a requirement development methodology. The usefulness of the proposed methodology was illustrated by a uโmaintenance system for industrial steelโplant.
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