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An executive information system (EIS), also known as an executive support system (ESS),〔http://www.techopedia.com/definition/543/executive-support-system-ess〕 is a type of management information system that facilitates and supports senior executive information and decision-making needs. It provides easy access to internal and external information relevant to organizational goals. It is commonly considered a specialized form of decision support system (DSS).〔Power, D. J., Decision Support Systems: Concepts and Resources for Managers, Greenwood/Quorum, 2002.〕 EIS emphasizes graphical displays and easy-to-use user interfaces. They offer strong reporting and drill-down capabilities. In general, EIS are enterprise-wide DSS that help top-level executives analyze, compare, and highlight trends in important variables so that they can monitor performance and identify opportunities and problems. EIS and data warehousing technologies are converging in the marketplace. In recent years, the term EIS has lost popularity in favor of business intelligence (with the sub areas of reporting, analytics, and digital dashboards). == History == Traditionally, executive information systems were mainframe computer-based programs. The purpose was to package a company’s data and to provide sales performance or market research statistics for decision makers, such as , marketing directors, chief executive officer, who were not necessarily well acquainted with computers. The objective was to develop computer applications that highlighted information to satisfy senior executives’ needs. Typically, an EIS provides only data that supported executive level decisions, not all company data. Today, the application of EIS is not only in typical corporate hierarchies, but also at lower corporate levels. As some client service companies adopt the latest enterprise information systems, employees can use their personal computers to get access to the company’s data and identify information relevant to their decision making. This arrangement provides relevant information to upper and lower corporate levels. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Executive information system」の詳細全文を読む スポンサード リンク
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