企业信息化就是用现代信息技术来支撑企业经营战略、行为规范和业务流程的实现，企业信息化结构一般分为产品（服务）层、作业层、管理层和决策层，企业门户网站属于（ ） 层。
- A.产品（服务）
- B.作业
- C.管理
- D.决策
正确答案及解析
正确答案
解析
产品（服务）层：提供相关产品或服务供用户使用。作业层：系统的主要功能是利用计算机代替人工操作，并完成基本数据的采集，在日常事物处理、报表查询处理、销售业务管理等方面提供相应的报表。管理层的信息系统是在基层数据采集和分析基础上，结合企业的经营战略，对财务、库存、销售、人事等进行有效管理。决策层的信息系统是通过获得的各类数据，确定企业的目标、纲领和实施方案，进行宏观控制。
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