Historically, IT developed as a support function in company's business.
在历史上，IT是作为一种公司内业务的支撑功能而开发的。
Administrative, clerical, back office, support function.
行政，文书，后勤，支持部门。
The function architecture consists of basic service function, basic support function and other expanded function.
功能体系包括了基本服务功能、基本支持功能和其它扩展功能。
The function architecture consists of basic service function, basic support function and other expanded function.
功能体系包括了基本服务功能、基本支持功能和其它扩展功能。
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