Data modeling is the process of creating a visual representation of data and its relationships within a system. This helps organizations understand how data is structured, stored, and accessed. By using diagrams and models, data modeling clarifies the requirements for databases and ensures that data is organized efficiently. There are different types of data models, including conceptual, logical, and physical models. Each type serves a specific purpose, from outlining high-level concepts to detailing how data will be implemented in a database. Effective data modeling is essential for successful database design and management.