Some computer scientists already talk of the birth of “societal information-technology systems”, or SIS.
一些计算机科学家已谈到“社会信息技术系统（SIS）”的诞生。
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The supervisory information system(SIS) and its database platform PI(plant information)real-time database, data flow and point building technology in PI database are introduced.
This paper discusses a technology of Direct Network Access, and researches a real-time data-importing system based on Direct Network Access for Supervisory Information system (SIS).