Entities in Computer Science and Database Design: Everything You Need to Know

Entity

a single element, a row from the table

In the context of computer science and information systems, an entity is an object, person, place, event or concept that is relevant to the information being managed. An entity can represent anything that has its own distinct characteristics that need to be captured, such as employees, products, customers, or orders.

In database design, an entity is an abstract representation of a real-world object or concept. Each entity is identified by a unique key, such as employee ID or customer ID, and is described by a set of attributes that define its characteristics, such as name, address, or phone number.

Entities are typically represented in a data model as a rectangle, with the entity name written inside. They can be related to each other through relationships, which describe how entities are connected to each other.

Overall, entities are an important part of data management and are used to organize and categorize information in a structured way.

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