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Group G10 Minh Anderson Thomas Hickerson
Q1: In the crow’s foot notation, entity types are denoted by boxes
Q2: In crow’s foot notation, crow feet with 3 claws represent maximum cardinality greater than 1
Q3: Entity relationship diagrams usually depict Maximum cardinality integrity constraints associated for all attributes
Q4: In a generalization hierarchy, attributes inherited from a supertype are not shown in ERD
Q5: A relationship involving more than two entity types is an M-way (multiway) relationships
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Prepared by Jennifer Kreie, New Mexico State UniversityHosted by the University of Arkansas Microsoft Enterprise Consortium Database Fundamentals The Data.
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Chapter 4 Entity Relationship (ER) Modeling. ER model forms the basis of an ER diagram ERD represents conceptual database as viewed by end user
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1 Introduction to modeling ER modelling Slides for this part are based on Chapters 8 from Halpin, T. & Morgan, T. 2008, Information Modeling and Relational.
Basic notation for supertype/subtype relationships.
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