Physical Data Model

A Physical Data Model is a detailed blueprint of how data is stored in a computer system. It defines the structure of data, including tables, columns, data types, and relationships between different pieces of information. Think of it as a map that shows not just what data we have and how it's related, but also how it is physically organized in a database, ensuring efficient storage and retrieval. This model helps IT professionals and database designers understand how to optimize performance and maintain data integrity in software applications.