Quantified and Temporal Fuzzy Reasoning for Active Monitoring in RapidBase ======================================= by Antti Pesonen and Antoni Wolski Symposium on Tool Environments and Development Methods for Intelligent Systems (TOOLMET2000), April 13-14, 2000, Oulu, Finland. Abstract In active monitoring, a monitoring system is given the responsibility of detecting conditions of interest, in a process, and taking the necessary actions like invoking alarms. RapidBase is a system for active monitoring utilizing an active database where database triggers, including fuzzy triggers, are used as basic monitoring tools. Two new instruments are introduced for use in fuzzy triggers: fuzzy quantifiers for expressing set-oriented propositions and fuzzy-temporal restrictors allowing to bind propositions to given intervals or points of time. The corresponding implementation is also described and its performance is analyzed. Keywords: process management, control room, active database, fuzzy rule set, fuzzy trigger, fuzzy quantifier, fuzzy temporal restrictor.