You should be able to differentiate between physical and schematic representations by providing examples of each.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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**Understanding Physical and Schematic Representations**

In this section, we will explore the differences between physical and schematic representations. By the end, you should be able to differentiate between the two forms of representation and provide examples for each.

### Physical Representations

Physical representations are tangible, real-world depictions of objects or concepts. They involve actual objects or models that can be physically touched and manipulated. For instance, a globe is a physical representation of Earth. Another example could be a model of the solar system that you can find in a science classroom, where each planet is represented by a physical object proportional to its size.

### Schematic Representations

Schematic representations, on the other hand, are abstract, often simplified, visual depictions of objects, concepts, or systems. They use symbols, diagrams, or drawings to represent the elements and their relationships within the system. For example, a circuit diagram is a schematic representation of an electrical circuit. It uses standardized symbols to represent different components such as resistors, capacitors, and batteries and shows how they are connected.

In summary, physical representations involve real, tangible models, whereas schematic representations involve abstract, symbolic visuals. Understanding both types of representations and knowing when to use each can greatly enhance your comprehension of complex concepts and systems.

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By providing both physical and schematic examples, students can appreciate the importance and utility of each type of representation in different contexts.
Transcribed Image Text:**Understanding Physical and Schematic Representations** In this section, we will explore the differences between physical and schematic representations. By the end, you should be able to differentiate between the two forms of representation and provide examples for each. ### Physical Representations Physical representations are tangible, real-world depictions of objects or concepts. They involve actual objects or models that can be physically touched and manipulated. For instance, a globe is a physical representation of Earth. Another example could be a model of the solar system that you can find in a science classroom, where each planet is represented by a physical object proportional to its size. ### Schematic Representations Schematic representations, on the other hand, are abstract, often simplified, visual depictions of objects, concepts, or systems. They use symbols, diagrams, or drawings to represent the elements and their relationships within the system. For example, a circuit diagram is a schematic representation of an electrical circuit. It uses standardized symbols to represent different components such as resistors, capacitors, and batteries and shows how they are connected. In summary, physical representations involve real, tangible models, whereas schematic representations involve abstract, symbolic visuals. Understanding both types of representations and knowing when to use each can greatly enhance your comprehension of complex concepts and systems. --- By providing both physical and schematic examples, students can appreciate the importance and utility of each type of representation in different contexts.
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