Introduction to Information Systems provides the basics of information systems, a requirement for everyone working in various types of organizations today. Information technology is an extremely important and increasingly complex component of business and professional organizations. Decisions related to information technology and the related information systems can be a major factor influencing an organization's survival.
Managers at all levels must make decisions about which systems are best for specific situations. The personnel within organizations today must have an understanding of the role of information systems, as well as appropriate methods for using the technology effectively. Using this text with its companion Web site, along with the ten-week access to the Wall Street Journal Interactive Edition, provides an enhanced introduction to information systems.
Databases are at the heart of modern commercial application development. Their use extends beyond this to many applications and environments where large amounts of data must be stored for efficient update and retrieval. The purpose of this course is to provide an introduction to the design and use of database systems, as well as an appreciation of the key issues in building such systems in heterogeneous and Web environments.We begin by covering the relational model and the SQL language. We then study methods for database design, covering the entity relationship model. Next, we discuss XML as a data model, and present languages for querying it. We see how XML is used for sharing data among different applications in a distributed environment. Finally, we touch on some advanced topics on the implementation of database systems, such as transactions and indexing.
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