Search results with tag "Entity relationship"
The Extended Entity Chapter 5 Relationship Model
media.lanecc.eduThe Extended Entity Relationship Model • Result of adding more semantic constructs to original entity relationship (ER) model • Diagram using this model is called an EER diagram (EERD) • Combines some of the Object-oriented concepts with Entity Relationship concepts. 2 Entity Supertypesand Subtypes • Entity supertype –Generic entity ...
Chapter 2 Data Models - Cleveland State University
cis.csuohio.eduJan 29, 2014 · The Entity Relationship Model Graphical representation of entities and their relationships in a database structure Entity relationship diagram (ERD) Uses graphic representations to model database components Entity instance or entity occurrence Rows in the relational table Connectivity: Term used to label the relationship types 22
Developing Entity Relationship Diagrams
www.javaguicodexample.comDeveloping Entity Relationship Diagrams (ERDs) Introduction This document seeks to give expanded explanation and examples of how to produce entity relationship …
Data Modeling and Data Models The Importance of Data …
media.lanecc.eduLogical/Conceptual Model The Entity Relationship Model • Widely accepted standard for data modeling • Introduced by Chen in 1976 • Graphical representation of entities and their relationships in a database structure • Entity relationship diagram (ERD) –Uses graphic representations to model database components