Database Management Systems Chapter 1

Introduction What is a database? What is a database management system (DBMS)? Remind me to tell you about this: wd/

Database development Challenges Conserving space Retrieving data rapidly Sharing data Providing backup and recovery

Application Development Feasibility – identify scope, costs, and schedule Analysis – gather information from users Design – define tables, relationships, forms, reports Development – create forms, reports, and help; test Implementation – transfer data, install, train, review

Components of DBMS Database engine Data dictionary Query processor Report writer Forms generator Application generator Communication and Integration facilities Security facilities

Advantages of DBMS Minimal data redundancy Data consistency Integration of data Sharing of data Enforcement of standards Ease of application development Uniform security, privacy, and integrity Data independence

Brief History of DBMS Hierarchical databases Network databases Relational databases Object-oriented databases

Object Oriented For more information visit this website: a/concepts/index.html