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ISDP2: Management information system – UNIT 5 INFORMATION SYSTEMS AND DATABASES

Another major thrust of systems design tools is the use of Database Management Systems (DBMS) to develop information systems. In Nigeria, these tools are more commonly used by programmers than other tools such as RAD. In part this is because of the simple information needs of Nigerian organizations, for which a simple DBMS was sufficient. The most famous DBMS used in Nigeria was Aston Tate’s DBase III+, which eventually grew up to became Dbase 7.0 for Windows, although it has been discontinued. 2.0 OBJECTIVES By the end of this unit, you should be able to: • Explain the different types of database models • Explain the database structure