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一、随机网船其特点随机网络是一种包含多个随机成分的网络模型.作为网络模型,它也是由节点、枝线和流组成.枝线表示活动或情况、节点是反映活动间逻辑关系(又称事件),流是反映完成活动的所需的时间数量(或成本、收益)等.但与一般网络模型不同,随机网络中不仅是通过活动的流量(时间等)是随机变量,各项活动和事件也是随机的,可按一定的概率发生或不发生.这种现象在工程管理和系统研究中极为普遍.例如进行一项空间探索,通常包括设计、制造、试验、发射、空间飞行和回收等阶段.用一般网络技术表示该系统时,如下图1所示.
First, the random network ship its characteristics The random network is a network model containing a number of random components. As a network model, it is also composed of nodes, branches and streams. Branches represent activities or situations, and nodes reflect the logical relationship between activities. (Also referred to as an event), flow is the amount of time (or cost, revenue) required to complete the activity, but unlike the general network model, not only is the flow through the activity (time, etc.) a random variable in the random network. The activities and events are also random and may occur or not occur with a certain probability. This phenomenon is extremely common in engineering management and system research. For example, conducting a space exploration usually includes design, manufacture, test, launch, and space flight. Recycling and other stages. When using the general network technology to represent the system, as shown in Figure 1 below.