39 er diagram dotted line
ERD Symbols and Meanings | Entity Relationship Diagram ... Crow's foot notation is used in Barker's Notation, Structured Systems Analysis and Design Method (SSADM) and information engineering. Crow's foot diagrams represent entities as boxes, and relationships as lines between the boxes. Different shapes at the ends of these lines represent the cardinality of the relationship. The Chen's ERD notation is still used and is considered to present a more ... What is dotted line in ER diagram? - AskingLot.com What is dotted line in ER diagram? entity-relationship erd. A dashed line means that the relationship is strong, whereas a solid line means that the relationship is weak. On the following diagram how do we decide that the relationship between the Room and Class entities is strong. Click to see full answer.
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