PROBLEM TO BE SOLVED: To automatically record work contents performed by a plurality of devices and the work time.;SOLUTION: An observing device 2 observes the location of an operator 1g in a factory 1. A production managing device 3 stores the contents of each event generated in each of a plurality of devices 1a-1f and the event generating time as production management information 3a. A work analyzing device 4 judges a time period when the operator 1g stays in the neighborhood of each of those devices 1a-1f from the location of the operator 1g and the positions of those devices 1a-1f (a step S1). Then, the work analyzing device 4 extracts the contents of the events generated by the devices in the neighborhood of the operator 1a within the time period from the production management information 3a (a step S2), and generates work analysis information by associating the extracted event contents with the time period (a step S3).;COPYRIGHT: (C)2003,JPO
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