随着信息技术在企业中的普及应用,信息系统规划成为企业信息经理和高层管理者最关注的课题之一.通过对信息系统规划的过程特征进行梳理和分类,建立反映过程特征以及过程特征与规划有效性之间关系的描述模型.同时,收集125家中国企业的数据,并应用这些数据对模型进行实证检验,发现:(1)规划的发起方式对规划过程的其他特征有显著的影响;(2)信息系统规划是一个非技术主导的组织管理活动,技术层面的过程特征对规划有效性的影响不显著,而组织层面的过程特征对规划有效性有显著的影响.,Information systems planning (ISP) is a critical conc for top executives and chief information officers (CIOs) of enterprises. This paper summarizes the process dimensions of ISP and proposes a descriptive model to describe these dimensions and their relationships with the planning effectiveness. The research model is empirically tested by the data collected from 125 Chinese big companies. Our results indicate: (1) the way of initiating and implementing the information system (direction of planning flow) significantly influences the other dimensions of ISP; (2) ISP is a non-technology-driven managerial activity. Thus dimensions on the organizational level, rather than technology-related process dimensions, strongly influence ISP effectiveness.