An Entity Relationship Diagram (ERD) is a visual description of various types of data and shows how different types of data relate to one another. An ERD includes 3 primary symbols that are a rectangle, an oval, and a diamond. The rectangle is called an ‘entity’ which is considered a noun. An oval is an attribute which is an adjective or characteristic of something, and a diamond is a relationship which is also a verb, how are they related? The ERD diagrams can help businesses analyze different types o relationships that are existing within their business process. For example, a company who creates computer may make an ERD to explain various relationships within the company about how they get/make their product, how one is purchased, and more. Below is an example of an ERD that I found that relates to my example as well:
Entity Relationship Diagrams are a great way for businesses to understand the information and data that is being stored and used within their own company.
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