Abstract
The package software eHOZEN had been developed to support the plant maintenance work for production plants and equipments. The plant maintenance management system manages various informations such as the equipment database that defines equipment specifications and also the historical database that includes maintenance and fault information. The plant maintenance management system requires to support reliable maintenance management information and to improve maintenance performance and maintenance technologies. Yokogawa Electric Corporation and System Plaza Inc. developed the new product “eHOZEN” that was redesigned the functionalities from the old version of Client/ Server configured plant maintenance management system and added the Web capabilities. This paper shows the features and functions of new “eHOZEN” and includes examples of performance improvement process of maintenance management work by applying the plant maintenance information management system.
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