A UML diagram can be used both to model database designs and class designs, but an ER diagram should be used exclusively in database problems. How do you pick one graphical representation over the other?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
A UML diagram can be used both to model database designs and class designs, but an ER diagram should be used exclusively in database problems. How do you pick one graphical representation over the other?
ERD – Entity Relation Diagram – giving you image of how the tables should connect, what fields are going to be on each table, the tables connection, if many-to-many, one-to-many.
UML can be used for many diagrams other then ERD. sequence diagram, state diagram, more for the funcionality of the application (what user can do, who does it, when he does it, before what step, what table he use to do it) other then the tables description.
I Would use ERD to describe database relation and UML to describe operations, time, actions, etc..
Refer wiki : Entity-relationship_diagram &
Unified_Modeling_Language