What Is Logical And Physical Data Model? Logical data model defines the structure of the data elements and set the relationships between them. A Physical Data Model describes the database specific implementation of the data model. What is difference between physical and logical data model? The logical data model defines the structure of the data
What Is An Example Of A Limitation To A Model? Models are used to simulate reality and make predictions. The major limitation of models is that they are ‘idealizations’ or ‘simplification’ of reality and thus cannot possibly replace reality. A number of assumptions are made during modeling and this causes differences between model and reality.
What Is The Difference Between Logical And Physical Data? Logical Data Dictionary focuses on key data elements (entities and fields) while Physical Data Dictionary describes all tables and columns. What is physical and logical database? A logical database must be able to access and identify all files within the storage system to operate correctly, whereas