大二上shaohua lecture 3商业计算机第三讲信息系统电子商务移动.pdf

• Reading: • Fundamentals of Business Information Systems by Stair, Reynolds & Chesney, Chapter 1. • Stair & Reynolds, chapter 4 and chapter 5 • O’Brien chapters 6 & 7 (very detailed) + pp.128-129. Business Applications • Question: How does ICT and, particularly, the Inte suppor ectronic business operations, electronic commerce, and business information and decision making? • We shall consider: - Business Information Systems - Electronic and Commerce Defining an Information System • An information system (IS) is a set of interrelated components that collect (input), manipulate & store (process), and disseminate (output) information, and provide a feedback mechanism to meet an objective • In information systems, input is the activity of gathering and capturing data • Processing means converting or transforming this input into useful outputs • Output involves producing useful information, usually in the form of s and reports • Feedback is information from the system that is used to make changes to input or processing activities Business Information Systems • The most common types of information systems used in business organisations are those designed for electronic and commerce, transaction processing, management information, and decision support • • These systems help employees in organisations to plish routine and special tasks • • They are often integrated in one product and delivered by the same software package • • For example, some enterprise resource nning packages process transactions, deliver information, and support decisions Transaction Processing Systems • A Transaction Processing System is an ‘Enterprise System’ • Enterprise systems help organisations perform and integrate important