Chapter 1

Introduction
• What is a database?
• What is a database management system
(DBMS)?
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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
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