This entity-relationship diagram illustrates a library management system. In this diagram, the staff keeps track of the member and manages reports. Each member has attributes like ID, Name, Address, and Phone. The members can reserve or return books. Each book has an ID, Price, Edition, Title, and Author.
Library management process diagram code in Gleek
Stuff–keeps track of–Member
keeps track of:diamond
About ER diagrams
We often make an entity-relationship (ER) diagram, ERD, or entity-relationship model, in the early stages of designing a database. An ERD is perfect for quickly sketching out the elements needed in the system. The ERD explains how the elements interact. ER diagrams can be shared with colleagues. Their simplicity makes them ideal even for non-technical stakeholders.