I have a question about those four thing because they confuse me. Whats the difference between conceptual model and normalization ? Also where ER and EER are belongs to Conceptual model or normalization?
Thank you
I have a question about those four thing because they confuse me. Whats the difference between conceptual model and normalization ? Also where ER and EER are belongs to Conceptual model or normalization?
Thank you
Conceptual models are informal. Examples of conceptual models are ER diagrams and (when explicitly used for the purpose of conceptual modeling) UML class diagrams.
Normalization is a procedure that can be applied to formal models consisting of :
(a) all the relation schemas involved in the design
(b) all the functional dependencies applying to the individual relation schemas
Normalization, and assessing normal form of a given design, can only be applied to formal models, and does not apply to informal/conceptual models and/or modeling techniques such as (E)ER.