| 摘要 |
The invention concerns schedules of a broadcast management system. In particular but not limited to, the invention concerns the managing of electronic schedules by a TV broadcaster having one or more television channels. The invention also concerns methods for creating, managing and broadcasting schedules database by a broadcast management system. The invention further concerns a datastore, a software application program and a computer system for implementing these methods. The schedule is comprised of events ( 100 ) and sub-events ( 110 ) each having associated essences ( 102 106 112 ) and source, wherein inheritance is implemented in a top-down manner so that the sub-event ( 110 ) inherits from the parent ( 100 ) the essences ( 102 106 ) or stores that it does not already have. The inheritance is governed by the types essence of the essence type that the source supports. By representing the schedule in a way that captures both events and essences in a hierarchical structure, the schedule contains sufficient information suitable for use by multiple components of the broadcast management infrastructure. This helps to reduce the need for ad-hoc integration in broadcast components. The hierarchical structure also allows for the capture of schedule information in a natural, top-down fashion that also allows for inheritance.
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