Access 2013 Diagram Relationship How
This is a comprehensive guide to the Entity-Relationship Diagram or ER Diagram including ER models, tools, symbols, examples and more: Entity Relationship Diagram (ER Diagram or ERD) is a pictorial or visual representation of classifying groups or entities of common interest and defining the relationship between these groups. Hence, a structure is created with various symbols of different shapes and sizes so that it can be used as a model to depict the internal structure & relationship. Entity Relationship Diagram is primarily used in the following areas: ER Models in Database Design: Used to visualize database tables and their relationships between them. Also finds usage in database troubleshooting. ER Diagrams in Software Engineering: Normally used in the planning stages of a software project. It is used for identifying different s