Have you worked with ER diagrams?

Yes, experience with ER diagrams (Entity-Relationship diagrams) typically involves creating and analyzing data models that describe entities, their attributes, and relationships between them.

ER diagrams help visualize the structure of a database and understand how data is interconnected. For example, in an order management system, entities like "Customer," "Order," and "Product" can be identified, with relationships such as who placed the order and which products are included.

An example of a simple ER scenario:

• Entity "User" with attributes: ID, name, email.
• Entity "Order" with attributes: order number, date.
• Relationship "places" between User and Order — one user can have many orders.

Working with ER diagrams includes constructing, reviewing, and using them for database and system design.