Information Systems Today Managing in the Digital World：信息系统在数字世界中管理.ppt

End of Chapter Content Information Systems Today: Managing in the Digital World 4-* Radio Satellite radio Referred to as “jukebox on steroids” Operates via signal received from low-orbiting satellites Prominent players: XM Radio, Sirius, WorldSpace Market share of traditional radio stations is decreasing * Information Systems Today: Managing in the Digital World 4-* IP Convergence: Videoconferencing over IP IP used to transmit video data Desktop video conferencing HP Halo meeting room: $400,000 Information Systems Today: Managing in the Digital World 4-* Increasing Mobility Knowledge workers require access to information from anywhere Communication devices Wireless devices capable of connecting to organization’s internal network Wireless security concerns Information Systems Today: Managing in the Digital World 4-* Managing the Data and Knowledge Infrastructure Organizations need to find new ways to manage: Data from different sources Data mining Internal knowledge Knowledge management tools Information Systems Today: Managing in the Digital World 4-* Data Mining Online transaction processing (OLTP) Immediate response to user requests Online analytical processing (OLAP) Quickly conducting complex analyses on data stored in a database Information Systems Today: Managing in the Digital World 4-* Data Mining Enhancing business intelligence by combining data from various sources Information Systems Today: Managing in the Digital World 4-* Operational vs. Informational Systems Information Systems Today: Managing in the Digital World 4-* Data Warehouses and Data Marts Data Warehouse Integration of multiple large databases and other information sources into a single repository Pull together, integrate, and share critical corporate data throughout the firm Data Mart Data warehouse that is limited in scope Customized for the decision support applications of a particular end-user group Information Systems Today: Managing in the Digital World 4-* Increasing Bu