2A Question What is an ERD?

An Entity Relationship Diagram (ERD) is an illustration of a flowchart that represents people, objects, ot concepts that relate to each other within a system. They are usually used to design databases intn specific jobs, businesses, use it for research. In an ERD you use symbols such as rectangles, diamonds, ovals, and connecting lines to connect each entity together whether that is what they do or the relationship. ERD’s can help businesses document their databases so it will cause less problems, inefficiencies, and help improve processes within the entity. ERDs help visualize how data is connected in a general less complicated way, it makes the process easier to understand. You can use ERD’s for many relationships whether that be, a one to one relationship, a one to many relationship, or a many to many relationship. All these relationships help define attributes within the entity more clearly. Down below shows an example of an ERD diagram.