HCI - UCD

What is the primary focus of User-Centered Design (UCD)?

• System functionality

• User needs and capabilities

• Cost reduction

• Programming efficiency

Which of the following is NOT a principle of Nielsen’s heuristics?

• Error prevention

• Aesthetic and minimalist design

• Learnability

• User control and freedom

In the Waterfall model, which phase comes immediately after Architectural Design?

• Requirements Specification

• Coding

• Maintenance

• Detailed Design

What distinguishes a principle from a design rule?

• Principles are theoretical, while design rules are practical.

• Design rules apply only to hardware, not software.

• Principles are specific to programming languages.

• Design rules can only be interpreted in one way.

According to Dix’s principles, which one relates to reducing cognitive load?

• Recoverability

• Predictability

• Learnability

• Flexibility

What is the purpose of a hierarchical task analysis (HTA) in task analysis?

• To create a programming structure.

• To define the UI components.

• To enforce industry standards.

• To break down tasks into subtasks for better understanding.

What is a major reason for evaluating design options with the Simplex One model?

• To ensure that system performance is maximized.

• To improve long-term memory retention.

• To analyze how different cognitive zones interact with the system.

• To create standardized interfaces.

In UCD, what is the main purpose of the prototype implementation phase?

• To finalize the software.

• To provide a testable model for user evaluation.

• To gather project funding.

• To complete coding.

What is a key limitation of the Waterfall model in interactive system design?

• It allows too much user feedback.

• It is too iterative.

• It does not accommodate iterative design well.

• t requires continuous evaluation.

Which of the following is a major challenge in requirements gathering?

• Users do not care about usability.

• Prototyping is too expensive.

• It is difficult to explicitly describe what is needed.

• Hierarchical task analysis is unnecessary.