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 Data Analysis and Desig Note 

Task 1.1 Critically compare different data models and schemas

You are required to identify various types of database models such as hierarchical network relational and object-oriented. Use appropriate diagrams to compare and contrast the key features, advantages and disadvantages of each database model.

You are required to use the appropriate diagram to explain the database schema which consists of three layers such as external, conceptual and internal. You are required to explain the functionality of each schema of each level (with the help of examples).

Task 1.2 Critically discuss the benefit and limitations of the different database

You are required to identify various types of database technologies such as file-based, relational database, multimedia database, object-oriented database, distributed database, data warehousing (data mars and data mining), web-based technology (cloud computing). Discuss benefits and limitations of each technology.

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