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Welcome to the Design rules MCQs Page

Dive deep into the fascinating world of Design rules with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Design rules, a crucial aspect of Human Computer Interaction. In this section, you will encounter a diverse range of MCQs that cover various aspects of Design rules, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Human Computer Interaction.

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Check out the MCQs below to embark on an enriching journey through Design rules. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Human Computer Interaction.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Design rules. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Design rules MCQs | Page 8 of 14

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Q71.
What is recoverability in the context of user interactions?

a.

The ability to reach a desired goal without any errors.

b.

The ability to undo the effects of previous interactions after recognizing an error.

c.

The ability of the system to recover from faults and errors in software engineering.

d.

The process of negotiation between the user and the system to correct errors.

Discuss
Answer: (b).The ability to undo the effects of previous interactions after recognizing an error. Explanation:Recoverability is the ability to reach a desired goal by undoing the effects of previous interactions after recognizing an error in the user's actions.
Q72.
What is the difference between forward and backward error recovery?

a.

Forward error recovery involves revoking the effects of previous interactions, while backward error recovery involves accepting the current state and moving forward.

b.

Forward error recovery is initiated by the user, while backward error recovery is initiated by the system.

c.

Forward error recovery involves negotiation towards the desired state, while backward error recovery attempts to undo the effects and return to a prior state.

d.

Forward error recovery is possible when the effects of interaction are not revocable, while backward error recovery is possible for revocable effects.

Discuss
Answer: (c).Forward error recovery involves negotiation towards the desired state, while backward error recovery attempts to undo the effects and return to a prior state. Explanation:Forward error recovery involves negotiating from the current state towards the desired state, while backward error recovery attempts to undo the effects of previous interactions and return to a prior state.
Q73.
Why is the principle of commensurate effort important for recovery procedures?

a.

It determines the intent of the user's recovery actions.

b.

It ensures that recovery actions are consistent with system functionality.

c.

It reflects the amount of effort required to undo an effect in relation to the initial action.

d.

It avoids blocking the user from getting to a desired state.

Discuss
Answer: (c).It reflects the amount of effort required to undo an effect in relation to the initial action. Explanation:The principle of commensurate effort states that the difficulty of undoing an effect should be proportional to the difficulty of performing the initial action. It ensures that recovery procedures are appropriately balanced in effort with the actions that led to the error.
Q74.
What does responsiveness measure in the context of user-system communication?

a.

The user's rate of interaction with the system.

b.

The system's ability to respond to user inputs.

c.

The time taken by the user to complete tasks.

d.

The rate of communication between the system and the user.

Discuss
Answer: (d).The rate of communication between the system and the user. Explanation:Responsiveness measures the rate of communication between the system and the user, often expressed as response time, the duration the system takes to express state changes to the user.
Q75.
Why is response time stability important in an interactive system?

a.

It ensures that the system can handle high computational resources.

b.

It guarantees instantaneous response times for all system reactions.

c.

It maintains consistency in response time for similar computational resources.

d.

It allows users to perform tasks without any communication delays.

Discuss
Answer: (c).It maintains consistency in response time for similar computational resources. Explanation:Response time stability refers to the invariance of response time for identical or similar computational resources. Consistency in response time is essential for users to anticipate system reactions and apply motor skills effectively.
Q76.
What is the purpose of task conformance in the evaluation of interactive systems?

a.

To ensure that the system supports all tasks within the application domain.

b.

To assess the completeness and adequacy of the system's task coverage.

c.

To measure the rate at which users can perform tasks.

d.

To evaluate the stability of response time during task execution.

Discuss
Answer: (b).To assess the completeness and adequacy of the system's task coverage. Explanation:Task conformance addresses both task completeness (coverage of all tasks of interest) and task adequacy (the user's understanding of the tasks). It evaluates whether the system supports all relevant tasks and if users can perform them as desired.
Q77.
What does task completeness refer to in the evaluation of interactive systems?

a.

The level of system services mapped onto all computational tasks.

b.

The implementation of computational services identified at early specification stages.

c.

The completeness of user tasks achieved by the computer system.

d.

The identification of new tasks suggested to users by a computer-based tool.

Discuss
Answer: (a).The level of system services mapped onto all computational tasks. Explanation:Task completeness refers to the extent to which the system services can be mapped onto all the user tasks identified during task analysis in the work domain.
Q78.
Why is it important for system services to be suitably general?

a.

To ensure the success of direct manipulation interfaces.

b.

To allow the user to define new tasks not previously conceived.

c.

To minimize the effort required in the interaction framework.

d.

To improve the accuracy of the model-world metaphor.

Discuss
Answer: (b).To allow the user to define new tasks not previously conceived. Explanation:System services should be suitably general so that the user can define new tasks that were not previously conceived, thus accommodating unforeseen uses and functionalities.
Q79.
How does task conformance relate to the success of direct manipulation interfaces?

a.

Task conformance ensures that direct manipulation interfaces match user tasks.

b.

Task conformance allows users to directly manipulate system services.

c.

Direct manipulation interfaces enable task completeness.

d.

Direct manipulation interfaces create a separate world for user tasks.

Discuss
Answer: (a).Task conformance ensures that direct manipulation interfaces match user tasks. Explanation:Task conformance ensures that the tasks represented by direct manipulation interfaces (the separate world) match the tasks as understood by the user and supported by the system, ensuring successful user interactions.
Q80.
What is the purpose of standards for interactive system design?

a.

To ensure compliance with hardware and software specifications.

b.

To provide guidelines for building interactive systems.

c.

To enforce international regulations on interactive systems.

d.

To establish a common language for software and hardware design.

Discuss
Answer: (b).To provide guidelines for building interactive systems. Explanation:Standards for interactive system design serve as guidelines to ensure that designers follow a set of rules while building interactive systems.
Page 8 of 14

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