The entities can be anything, such as an object, a concept, or a piece of data. The entity-relationship data modeling technique was developed for databases and introduced by Peter Chen in 1976.

After creating the relationship, Excel will identify those tables as a Data Model Table, not a Worksheet Table in the dropdowns. To see what Excel did, click Manage Data Model in the Data Tools group.

Establishing relationships between tables is fundamental to forming a cohesive data model. These relationships define how different data entities interact, ...

The Data Model Profile is a UML extension that supports the modeling of relational databases in UML. It includes custom extensions for such things as tables, ... Relationships The UML data modeling ...

Logical data models detail how entities in the conceptual model map to tables, fields, indexes and relationships within a relational database. For example, a relational table may represent an ...

It entails putting data objects, their relationships and the rules governing them into visual form. Because it calls on diverse expertise, data modeling is rarely a one-time solo effort.

The simplest data model consists of entities and relationships. As work on the data model progresses, additional detail and complexity are added, including attributes, domains, constraints, keys, ...

Get started modeling entities and relationships for Java data persistence, using an example application based on Java 21 with Hibernate 6.3.