纵观以往的教学评测系统，缺乏综合分析、辅助决策的能力，并且对其历史积累的海量信息中隐藏知识的利用无能为力。
Most of the previous teaching systems are that have no ability of synthetic analysis, decision support, and the utilization of hidden knowledge from vast history information.
人们不再满足于对这些数据进行简单的事务管理和信息检索，而期望从数据中获取知识来辅助决策。
People will not settle for simple affair management and information search on these data, but look forward to gaining knowledge from data to assistant decision-making.
使挖掘出的知识更好的为辅助决策服务。
Visibilization of mining result makes the mined knowledge serve auxiliary decision better.
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