Transcription of The Enhanced Entity- Relationship (EER) Model
{{id}} {{{paragraph}}}
Copyright 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 8 The Enhanced Entity- Relationship (EER) Model Copyright 2011 Ramez Elmasri and Shamkant Navathe Chapter 8 Outline Subclasses, Superclasses, and Inheritance Specialization and Generalization Constraints and Characteristics of Specialization and Generalization Hierarchies Modeling of UNION Types Using Categories Copyright 2011 Ramez Elmasri and Shamkant Navathe Chapter 8 Outline (cont d.) A Sample UNIVERSITY EER Schema, Design Choices, and Formal Definitions Example of Other Notation: Representing Specialization and Generalization in UML Class Diagrams Data abstraction , Knowledge Representation, and Ontology Concepts Copyright 2011 Ramez Elmasri and Shamkant Navathe The Enhanced Ent
Abstraction process Classes and objects are made uniquely identifiable by means of some identifier Needed at two levels To distinguish among database objects and classes To identify database objects and to relate them to their real-world counterparts
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
{{id}} {{{paragraph}}}
Creation by Process-Oriented Project Management, Abstraction, Process, PROCESS API, The Abstraction, 14 Process flow chart, Process flow chart, The process, Automotive SPICE, Automotive SPICE Process, CONCEPTUAL MODELLING: KNOWLEDGE ACQUISITION, CONCEPTUAL MODELLING: KNOWLEDGE ACQUISITION AND MODEL ABSTRACTION, Abstraction for Solving Large Incomplete-Information, Abstraction for Solving Large Incomplete-Information Games, Python