Study the following EER diagrams to understand better about the enhanced entity-relationship diagram. These diagrams are basically an expanded upon version of ER diagrams. Give a look at the following examples of EER below.
EER diagrams are helpful tools for designing databases with high-level models. With their enhanced features, you can plan databases more thoroughly by delving into the properties and constraints with more precision. This model in computer science is a high-level or conceptual data model incorporating extensions to the original entity-relationship model, used in the design of databases. EERDs include Subtypes and supertypes, Specialization and generalization, Category or union type, Attribute, and relationship inheritance.
Generalization is the process of defining a general entity type from a collection of specialized entity types. Meanwhile, specialization is the inverse of generalization, since it defines subtypes of the supertype and forms relationships between supertype and subtype. EER is basically the upgraded version of ER modeling which includes the existing features of ER.
A well-designed EERD will help you build storage systems that are long-lasting and useful. The diagrams that we provided above are the EER diagram. All of the diagrams are ready to be downloaded and printed in good quality. Find more interesting and educative diagrams in our site by browsing up our category!