Hi, I found the following statements in Drools document: "Sliding windows start to match immediately and defining a sliding window does not imply that the rule has to wait for the sliding window to be "full" in order to match. For instance, a rule that calculates the average of an event property on a window:length(10) will start calculating the average immediately, and it will start at 0 (zero) for no-events, and will update the average as events arrive one by one." Would someone please let me know how I can wait for the sliding windows to be full to match? Our requirement is always use the average reading over at least 60 seconds. Thanks! Grant -- View this message in context: http://drools.46999.n3.nabble.com/Sliding-window-full-length-question-tp4... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users