Abstract:
In this study, Petri net is used to model and analyze cross-organization task coordination patterns of Urban Emergency Response Systems (UERS). A kind of Petri net extended with time, resource and message factors is firstly proposed to model tasks and emergency response process within a single organization. Based on this the proposed model, four kinds of cross-organization task coordination patterns within a UERS are summarized, including the sequential task pattern, the task synchronization pattern, the resource sharing pattern and the message exchanged pattern. A UERS can be modeled according to the task and emergency response process modeling methods of a single organization and the cross-organization task coordination patterns.
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