Which of the following is TRUE about the Physical Design?

Question

BlackTom AI · Accepted Answer

Physical design defines how system requirements are implemented in concrete hardware, software, data storage, user interfaces and transaction flows — in other words, the detailed “how” of the solution rather than the “what.”

1) Relevant knowledge points and concepts
- Logical design vs. physical design: Logical design specifies what is required (data models, functional requirements, outputs) and the idealized processes. Physical design translates those logical specifications into concrete implementations (file structures, database schemas, indexes, screen layouts, input validation, hardware, network configurations, and storage formats).  
- Physical design responsibilities include defining how requirements are satisfied (algorithms, modules, performance tuning) and how data is captured (forms, input validation, data entry screens, sensors).

2) Step-by-step reasoning
- Start from the distinction: if an option emphasizes “what is required,” it points to logical requirements, not physical design.  
- If an option emphasizes “how” requirements are satisfied and the mechanisms for data input, it matches the physical design focus (implementation and input interfaces).  
- Compare each option to these roles.

3) Calculations
- Not applicable; this is conceptual.

4) Why the correct answer is correct
- Option B states “Concerned with how the requirements are satisfied and how the data is input.” That directly describes implementation detail (how requirements are realized) and input mechanisms (screens/forms/validation), which are central to physical design.

5) Why the other options are incorrect
- A (“what is required and how the data is input”): mixes logical (“what is required”) with input; physical design does inputs but not defining high-level requirements.  
- C (“how the requirements are satisfied and what information will be output”): partially correct on “how” but “what information will be output” is typically determined during logical design; physical design focuses on implementation of outputs rather than selecting output content.  
- D (“what is required and what processes must be performed”): describes logical/requirements analysis, not physical implementation.

6) Conclusion
The correct choice is B. This matches the provided answer: B. Concerned with how the requirements are satisfied and how the data is input.

Which of the following is TRUE about the Physical Design?Single choice

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