Composite entities - PowerPoint PPT Presentation

Chapter 4

Chapter 4. Entity Relationship (ER) Modeling Database Systems: Design, Implementation, and Management, Seventh Edition, Rob and Coronel. The Entity Relationship (ER) Model. ER model forms the basis of an ER diagram ERD represents conceptual database as viewed by end user

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Relationship Degree

Relationship Degree. Indicates number of entities or participants associated with a relationship Unary relationship Association is maintained within single entity Binary relationship Two entities are associated Ternary relationship Three entities are associated.

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PANOGEN V5 for Composite fabrics

PANOGEN. Presented by CIMPA. PANOGEN V5 for Composite fabrics. General presentation. PANOGEN – Description. PANOGEN is a set of dedicated tools, intended to assist the different steps of manufacture of composite fabrics. These tools allow :

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