![]() ![]() ![]() Moreover, an ERD helps identify all the data that needs to be stored in the database. It allows you to map all the information in a graphical manner that is easy to understand and interpret. Using an ER diagram, you can resolve many problems during the planning phase of the information system rather than at the execution or testing phase. An ERD comes very handy here, where all entities are named and linked together to ensure the software caters to them all. You need to consider the user interface, admin interface, how the products will be identified and the whole billing process. You might be thinking, how is it related to Information systems? ER diagrams are handy in mapping out the functions the software will perform and how it will link different entities together.įor example, if you are making an online shopping system, you might have to look at the software from different perspectives. Now that you understand what an ER diagram is. ER Diagram Examples for Online Shopping Systems ![]()
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