Copyright (C) 2005, 2004 Epcglobal Inc., All Rights Reserved. EPCglobal Inc., its members, officers, directors, employees, or agents shall not be liable for any injury, loss, damages, financial or otherwise, arising from, related to, or caused by the use of this document. The use of said document shall constitute your express consent to the foregoing exculpation. Application Level Events (ALE) version 1.0 A ECBoundarySpec specifies how the beginning and end of event cycles are to be determined. The startTrigger and repeatPeriod elements are mutually exclusive. One may, however, specify a ECBoundarySpec with neither event cycle start condition (i.e., startTrigger nor repeatPeriod) present. At least one event cycle stopping condition (stopTrigger, duration, and/or stableSetInterval) must be present. A ECFilterSpec specifies what EPCs are to be included in the final report. The ECFilterSpec implements a flexible filtering scheme based on pattern lists for inclusion and exclusion. ECReportOutputSpec specifies how the final set of EPCs is to be reported with respect to type. ECReports is the output from an event cycle. The "meat" of an ECReports instance is the lists of count report instances and list report instances, each corresponding to an ECReportSpec instance in the event cycle's ECSpec. In addition to the reports themselves, ECReports contains a number of "header" fields that provide useful information about the event cycle. ECReportSetSpec specifies which set of EPCs is to be considered for filtering and output. ECReportSetEnum is an enumerated type denoting what set of EPCs is to be considered for filtering and output: all EPCs read in the current event cycle, additions from the previous event cycle, or deletions from the previous event cycle. A ReportSpec specifies one report to be returned from executing an event cycle. An ECSpec may contain one or more ECReportSpec instances. An ECSpec describes an event cycle and one or more reports that are to be generated from it. It contains a list of logical readers whose reader cycles are to be included in the event cycle, a specification of read cycle timing, a specification of how the boundaries of event cycles are to be determined, and list of specifications each of which describes a report to be generated from this event cycle. An ECTime specifies a time duration in physical units. ECTimeUnit represents the supported physical time unit: millisecond A trigger is a URI that is used to specify a start or stop trigger for an event cycle.