Object Oriented Software Engineering   View all facts   Glossary   Help

subject > representation > coding technique > diagram > Entity-Relationship diagram > Extended Entity-Relationship diagram

Extended Entity-Relationship diagram (EERD)
subject			fact

Extended Entity-Relationship diagram	does show inheritance
	is a subtopic of 5.7 - Detailed Example: A Class Diagram for Genealogy
	is abbreviated as EERD
	is a kind of Entity-Relationship diagram
Entity-Relationship diagram	is used by database designers
diagram	has advantages it conveys or summarizes complex concepts or mechanisms more easily than other techniques
	has problems can be hard for users to interact with or interpret not usable by blind people it can be expensive to program diagram drawing software
	should have a label if its meaning is not obvious, using a caption or pop-up label that appears when the user moves the mouse over it