Entity-relationship model - Wikipedia, the free encyclopedia
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In software engineering, an Entity-Relationship Model (ERM) is an abstract and conceptual representation of data. Entity-relationship modeling is a database modeling method, used to produce a type o...
en.wikipedia.org/wiki/Entity-relationship_model
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These allow us to represent the information from above such as the E-R Diagram below: ... 4.1 Lecture: Entity Relationship Analysis; ... Entity-Relationship Diagrams (ERD);
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www.umsl.edu/~sauter/analysis/er/er_intro.html
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Definition: An entity-relationship (ER) diagram is a specialized graphic that illustrates the interrelationships between entities in a database. ER diagrams often use symbols to represent three different types of information. ... Also Known As: ER Diagram, E-R Diagram, entity-relationship model...
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databases.about.com/cs/specificproducts/g/er.htm
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We can express the overall logical structure of a database graphically with an E-R diagram. ... Next: Other Styles of Up: The Entity-Relationship Model Previous: Primary Keys for...
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www.cs.sfu.ca/CC/354/zaiane/material/notes/Chapter2/nod...
www.cs.sfu.ca/CC/354/zaiane/material/notes/Chapter2/node8.html
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Entity-Relationship Diagram (ERD) ... An entity-relationship diagram is a snapshot of data structures. ... Entity-Relationship diagrams (ERD) emerged in the 1970's from work by Dr. Peter Chen and others. They were looking for means to simplify the representation of large and complex data storage concepts.
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www.aisintl.com/case/olais/pb96/er_model.htm
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What are Entity Relationship Diagrams? ... Entity Relationship Diagram Notations ... Entity Relationship Diagrams (ERDs) illustrate the logical structure of databases.
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www.smartdraw.com/resources/centers/software/erd.htm
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Entity Relationship Diagram - Free Online Tutorial ... Entity Relationship Diagram - Entity Identification; The process of identifying entities is one of the most important steps in developing a data model. It is common practice for an experienced analyst to adopt an intuitive approach to entity identification,
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www.getahead-direct.com/gwentrel.htm
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An entity-relationship diagram is a data modeling technique that creates a graphical representation of the entities, and the relationships between entities, within an information system. ... entity-relationship diagram Activate your FREE membership today | Log-in...
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whatis.techtarget.com/definition/0,289893,sid9_gci33312...
whatis.techtarget.com/definition/0,289893,sid9_gci333128,00.html
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