Hierarchical Network Technology And Its Application

Current network techniques mainly point to simple-hierarch network plan and are difficult to effectively direct production of large-scale enterprise. Since their production procedure are very complex and exist hundred of thousands activities, corresponding network graph are very hard to describe. In practical production plan network is incomplete, hence application hierarchy network to improve plan quality of production procedure has great theory and practice significance.This paper discusses history and actualities of network plan, point to existing problems, studies problems of estimation for activities duration, resources allocation, risk analysis, expresses author's new views. Based on it, the author develops hierarchical network technique and indicates its application.At first, this paper studies hierarchical decomposition of network plan, presents hierarchical principle and model, different hierarchy network's relationship, calculation of parameter.Secondly, this paper studies optimization of resource of hierarchical network technique and presents concept of partial simplification and connection sub-network.Thirdly, this paper discusses based-network risk analysis. By analyzing PERT model and introduce risk factor influence matrix, The results determines activities' duration and total duration, asserts project total duration's probability distribution, and studies correlation of risk factor.Besides, this paper discusses application of hierarchical network technique in machine enterprise. At last, the author studies hierarchical network technique's application and gives an example.