The document discusses databases used in CAD/CAM systems. It describes the main goals of databases as eliminating redundancy, enforcing standards, applying security restrictions, maintaining integrity, and balancing conflicting requirements. It then lists and defines the main types of databases as relational, hierarchical, network, and object-oriented. The document also discusses database management systems and the different coordinate systems used in CAD/CAM databases, including model, working, and screen coordinate systems.

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CAD/CAM
SOFTAWRE

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DATA STRUCTURE

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DATABASE
ELIMINATE REDUNDANCY
ENFORCE STANDARDS
APPLY SECURITY RESTICTIONS
MAINTAIN INTEGRITY
BALANCE CONFLICTING REQUIREMENTS
DATABASE TYPES
RELATIONAL DATABASE
HIERARCHICAL DATABASE
NETWORK DATABASE
OBJECT-ORIENTED DATABASE

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RELATIONAL DATABASE

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HIERARCHICAL DATABASE

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NETWORK DATABASE

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OBJECT-ORIENTED DATABASE

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DATABASE MANAGEMENT SYSTEM

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DATABASE COORDINATE SYSTEM
MODEL COORDINATE SYSTEM
Working COORDINATE SYSTEM
SCREEN COORDINATE SYSTEM

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 MODEL COORDINATE SYSTEM

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 SCREEN COORDINATE SYSTEM