(1) (Executive Information System) An information system that consolidates and summarizes ongoing transactions within the organization. It provides top management with all the information it requires at all times from internal and external sources.|
EIS Vs. DSS
The terms EIS and decision support system (DSS) are often used synonymously; however, an EIS implies more of a war room style graphical interface that overlooks the entire enterprise. A decision support system (DSS) typically provides a spreadsheet style "what if?" analysis capability, often for only one department or one product at a time. LightShip and Forest & Trees are examples of EIS software that popularized the concept. The EIS systems in the 1980s were the progenitors of the business intelligence (BI) software in the 1990s. See DSS, EII and BI software.
(2) (Enterprise Information Services) The back-end layer where the traditional data processing occurs in an organization, which includes the databases, mainframe and ERP applications.