Database Management: The Physical Model

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What is the conceptual model also known as?

Physical schema

Conceptual schema (correct)

Internal schema

Logical design

Which model represents a global view of the entire database by the entire organization?

Physical model

Logical model

ER model

Conceptual model (correct)

What does the term 'logical design' refer to in the context of database systems?

Implementing the physical schema

Physical implementation of the database

Defining the internal schema

Creating a conceptual data model (correct)

Which model provides a macro-level view of the data environment?

Conceptual model Signup and view all the answers

In database design, what does 'software and hardware independent' refer to?

Logical independence Signup and view all the answers

Which model is the most widely used conceptual model according to the text?

ER model Signup and view all the answers

In database management, which model operates at the lowest level of abstraction?

Physical model Signup and view all the answers

What is a characteristic of the physical model in databases?

It requires both hardware and software definitions. Signup and view all the answers

When can you achieve physical independence in database design?

When changing the physical model doesn't impact the internal model. Signup and view all the answers

What type of diagrams are associated with the conceptual model in database design?

High end-user views diagrams Signup and view all the answers

Which modeling aspect involves describing the way data is saved on storage media?

Physical model Signup and view all the answers

Where does the internal schema fall in terms of degree of abstraction?

Low abstraction Signup and view all the answers

What is the external model?

A representation of the end users' view of the data environment Signup and view all the answers

How do end users usually operate in relation to the external model?

With a focus on specific business units Signup and view all the answers

What is used to represent the external views in the text?

ER diagrams Signup and view all the answers

Database Management: The Physical Model

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Questions and Answers

What is the conceptual model also known as?

Which model represents a global view of the entire database by the entire organization?

What does the term 'logical design' refer to in the context of database systems?

Which model provides a macro-level view of the data environment?

In database design, what does 'software and hardware independent' refer to?

Which model is the most widely used conceptual model according to the text?

In database management, which model operates at the lowest level of abstraction?

What is a characteristic of the physical model in databases?

When can you achieve physical independence in database design?

What type of diagrams are associated with the conceptual model in database design?

Which modeling aspect involves describing the way data is saved on storage media?

Where does the internal schema fall in terms of degree of abstraction?

What is the external model?

How do end users usually operate in relation to the external model?

What is used to represent the external views in the text?

Which term is used for a specific representation of an external view in the text?

What does the external model provide a view of?

In what form are external models typically represented?

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