Available under Creative Commons-ShareAlike 4.0 International License.
Provide concepts that are close to the way people perceive data to present the data. A typical example of this type is the entity relationship model which uses main concepts like entities, attributes, relationships. An entity represents a real-world object such as an employee, a project. An entity has some attributes which represents properties of entity such as employee’s name, address, birthdate. A relationship represents an association among entities, for example an employee works on many projects. The relationship exists between employee and project.
- 8443 reads
