View stunning SlideShares in full-screen with the new iOS app!Introducing SlideShare for AndroidExplore all your favorite topics in the SlideShare appGet the SlideShare app to Save for Later — even offline
View stunning SlideShares in full-screen with the new Android app!View stunning SlideShares in full-screen with the new iOS app!
Entity Classes and AttributesEntity Class are represented by rectanglesAttributes are represented by ovalsKey attribute is represented by an underlineMultivalued attributes is represented with an oval with a double borderDerived attribute is represented with an oval dashed border -- Example the AGE from current -birthComposite attribute is represented with an oval that connects to additional ovalsRelationship Types and ConstraintsA relationship type is represented by a diamond and two connecting lines. The name of therelationship is shown inside the diamond. Reading the diagram from left to right to yields "a storeowns a video"..The name of the relationship type is a verb or verb phrase that describes the relationship.The alternate relationship name IsOwnedBy is the name of the relationship type when reading theother direction.