Exercise 22: Entity relationship diagram - definitions

Entity Relationship Diagram

(What is Entity Relationship Diagram (ERD)?, 2022)

Benefits of designing an ERD (Thakur, 2022): 

·      Straightforward relation representation

·      Conversion from E-R diagram to a network or hierarchical data model can· easily be accomplished.

·      Graphical representation for better understanding

 

Reference list:

 

SearchDataManagement. 2022. What is Entity Relationship Diagram (ERD)? - Definition from WhatIs.com. [online] Available at: <https://www.techtarget.com/searchdatamanagement/definition/entity-relationship-diagram-ERD> [Accessed 3 April 2022].

 

Thakur, D., 2022. What is ER-Model?Advantages and Disadvantages of E-R Model. - Computer Notes. [online] Computer Notes. Available at: <https://ecomputernotes.com/fundamental/what-is-a-database/advantages-and-disadvantages-of-e-r-model> [Accessed 3 April 2022].

 

Visual-paradigm.com. 2022. What is Entity Relationship Diagram (ERD)?. [online] Available at: <https://www.visual-paradigm.com/guide/data-modeling/what-is-entity-relationship-diagram/> [Accessed 3 April 2022].