关键词:  , 企业信息系统, 用户行为, 人类行为动力学, 幂律分布

Abstract: In order to explore the statistical rule of users’ access behavior in enterprise information system, human dynamics is employed to study the users’ access distribution of individual user, group users and all users in information system. The results show that interval time distribution of three levels users’ access to information systems have serious fat tail, but can’t be described by a single distribution. Individual users’ access interval time meets a power-law distribution, group users’ level follows a mixed power-law with exponent’s truncation, and all users’ level can describe better by exponential distribution and power-law distribution.

Key words: enterprise information system, users&rsquo, behavior, human dynamics, power-law distribution