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Modeling Your Data

Modeling Your Data

Modeling Your Data. Chapter 2. Overview of Database Design. Conceptual design : What are the entities and relationships in the enterprise? What information about these entities and relationships should we store in the database?

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376 views • 30 slides
The Entity-Relationship Model

The Entity-Relationship Model

The Entity-Relationship Model. Chapter 2. Database Design Process. Requirement collection and analysis DB requirements and functional requirements Conceptual DB design using a high-level model Easier to understand and communicate with others Logical DB design (data model mapping)

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569 views • 24 slides
The Entity-Relationship Model

The Entity-Relationship Model

The Entity-Relationship Model. Chapter 3+4. Priorities when Designing an E/R Diagram. Express all constraints (you can express!) Use and do not change terminology and class structure of the application domain Keep it simple (avoid defining entity types that do not serve any purpose

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381 views • 20 slides
The Entity-Relationship Model

The Entity-Relationship Model

The Entity-Relationship Model. Overview of Database Design. Requirements Analysis: Understand what data will be stored in the database, and the operations it will be subject to. Conceptual Design : ( ER Model is used at this stage.)

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295 views • 20 slides
The Entity-Relationship Model

The Entity-Relationship Model

The Entity-Relationship Model. Chapter 2. Overview of Database Design. Conceptual design : ( ER Model is used at this stage.) What are the entities and relationships in the enterprise? What information about these entities and relationships should we store in the database?

★ ★ ★ ★ ★

339 views • 19 slides
The Entity-Relationship Model

The Entity-Relationship Model

The Entity-Relationship Model. Chapter 2. Overview of Database Design. Conceptual design : ( ER Model is used at this stage.) What are the entities and relationships in the enterprise? What information about these entities and relationships should we store in the database?

★ ★ ★ ★ ★

290 views • 18 slides

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