INF2603
Assignment 03
(QUIZ & ANSWERS)
Due Date 01 July 2025
, INF2603
Assignment 03
(QUIZ & ANSWERS)
Due Date 01 July 2025
Advanced Database Modeling Concepts and Strategies
Introduction
Effective database design transcends the mere storage of data; it necessitates the
creation of robust, adaptable, and semantically rich models that accurately reflect
complex real-world phenomena. The Extended Entity-Relationship (EER) model
significantly augments the foundational Entity-Relationship (ER) model by introducing
advanced constructs that allow for the representation of more intricate data semantics,
crucial for contemporary information systems. Furthermore, practical database design
often encounters special cases that demand flexible solutions beyond standard
normalization principles.
5-1: Describe the Main Extended Entity-Relationship (EER) Model Constructs and
How They Are Represented in ERDs and EERDs
The Extended Entity-Relationship (EER) model is a powerful conceptual data modeling
tool that incorporates advanced semantic concepts beyond the basic ER model. It
allows for a more granular and accurate representation of complex real-world data
relationships and constraints. An EER Diagram (EERD) visually depicts these
constructs as enhancements to standard ER Diagrams (ERDs).
Assignment 03
(QUIZ & ANSWERS)
Due Date 01 July 2025
, INF2603
Assignment 03
(QUIZ & ANSWERS)
Due Date 01 July 2025
Advanced Database Modeling Concepts and Strategies
Introduction
Effective database design transcends the mere storage of data; it necessitates the
creation of robust, adaptable, and semantically rich models that accurately reflect
complex real-world phenomena. The Extended Entity-Relationship (EER) model
significantly augments the foundational Entity-Relationship (ER) model by introducing
advanced constructs that allow for the representation of more intricate data semantics,
crucial for contemporary information systems. Furthermore, practical database design
often encounters special cases that demand flexible solutions beyond standard
normalization principles.
5-1: Describe the Main Extended Entity-Relationship (EER) Model Constructs and
How They Are Represented in ERDs and EERDs
The Extended Entity-Relationship (EER) model is a powerful conceptual data modeling
tool that incorporates advanced semantic concepts beyond the basic ER model. It
allows for a more granular and accurate representation of complex real-world data
relationships and constraints. An EER Diagram (EERD) visually depicts these
constructs as enhancements to standard ER Diagrams (ERDs).
