Question: Scenario: You are working on developing a new Entity$-$Relationship Diagram $($ERD$)$ to model the Point$-$of$-$Sale $($POS$)$ system for a national chain of jewelry stores. You've added the entities to the model and established the relationships between the entities. Now you need to describe the entities. What step should you take next? add attributes, add actors, draw the control flow or draw the swim Lanes