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突发事件事实上是一系列次生、衍生甚至耦合事件的组合,称之为事件链。根据事件链(EC)所包含的4个要素——事件、交错关系、活动场景、灾害后果,将其表达为EC={ECL,R,Context,Disaster}。而各个事件(Ei)由对象、属性和行为构成,即事件(Ei)表达为Ei={objij,Attrsijk,Actionijk},从而建立起事件对象管理模型。随后,按照事件链发生发展的自然规律,根据一定方法,筹建一定资源((Methodobjij,Resourceobjij或(Methodobjij,objkl,Resourceobjij,objkl)),采取断链或补链措施,获得应急预案的事件链管理策略,并以图书馆火灾事故为例,展示基于事件链策略的应急预案制定过程。
Emergencies are in fact a series of secondary, derivative or even a combination of coupling events, called event chains. It is expressed as EC = {ECL, R, Context, Disaster} according to the four elements included in the event chain (EC) - events, interlacing, activity scenarios and disaster consequences. Each event (Ei) is composed of objects, attributes and behaviors. That is, event (Ei) is expressed as Ei = {objij, Attrsijk, Actionijk}, so as to establish an event object management model. Then, in accordance with the natural law of occurrence and development of the incident chain, a certain resource (Methodobjij, Resourceobjij or (Methodobjij, objkl, Resourceobjij, objkl)) is prepared according to a certain method, and an incident chain management Strategy, and taking the fire accident of the library as an example, this paper presents the emergency plan making process based on the event chain strategy.