Definition - What does Data Modeling mean?
Data modeling is a representation of the data structures in a table for a company’s database and is a very powerful expression of the company's business requirements. This data model is the guide used by functional and technical analysts in the design and implementation of a database.
Data models are used for many purposes, from high-level conceptual models to physical data models.
Techopedia explains Data Modeling
Data modeling explores data-oriented structures and identifies entity types. This is unlike class modeling, where classes are identified.
Three basic styles of data modeling are generally used in practice today.
- Conceptual Data Models: High-level, static business structures and concepts
- Logical Data Models (LDMs): Entity types, data attributes and relationships between entities
- Physical Data Models (PDMs): The internal schema database design
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