Скачать или смотреть Data Models & Types of Data Models Amharic

Welcome to our video on Data Models! In this informative session, we’ll explore the essential role data models play in organizing, managing, and structuring data within systems.
🔍 What is a Data Model?
A data model is a conceptual representation of data objects, their attributes, and the relationships between them. It serves as a blueprint for how data is stored, accessed, and manipulated in a database.
📊 Types of Data Models:
Conceptual Data Model (CDM):
Provides a high-level overview of the data and its relationships.
Focuses on business concepts without diving into technical details.
Logical Data Model (LDM):
Defines how the data will be structured in a detailed manner.
Independent of any specific database management system (DBMS) and includes entities, attributes, and relationships.
Physical Data Model (PDM):
Describes how the data will be implemented using a specific DBMS.
Includes tables, columns, data types, indexes, and performance optimization strategies.

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