ermodel

[ermodel]

ER Model

ER Model: Key Components & Summary The Entity-Relationship (ER) model is a database design tool that visually represents data and relationships.Key Components:1. Entities – Objects or concepts (e.g., Student, Employee).2. Attributes – Properties of entities (e.g., Name, Age).3. Relationships – Associations between entities (e.g., Student-Enrolls-Course).4. Primary Key – Unique identifier for an entity.5. Cardinality – Defines relationship constraints (e.g., One-to-Many, Many-to-Many).Summary:The ER model helps in structuring databases by providing clarity, reducing redundancy, and mapping relationships efficiently. While it can become complex for large databases and lacks implementation details, it remains an essential tool for database design.

Topic name : ER Model

1. Anuja Dhole

2.Pooja sangolkar

3.Shruti Dhakate

4.Isha Godbole