Data Model

• is defined as an abstract model that organizes data description, data semantics, and consistency constraints of data
• emphasizes what data is needed and how it should be organized instead of what operations will be performed on data
• is like an architect’s building plan, which helps to build conceptual models and set a relationship between data items

Data Modeling Technique Types

• Unified Modeling Language (UML) Diagram
• Entity-Relationship Model (ERM) - Entity-Relationship Diagram (ERD)

Data Model - Types