ISO 9241 Part 110 Dialogue Principles

ISO 9241 Part 110 Dialogue Principles

Interaction principles and design recommendations.

1. Suitability for the task

The dialogue is suitable for a task when it supports the user in the effective and efficient completion of the task.

2. Self-descriptiveness

The dialogue is self-descriptive when each dialogue step is immediately comprehensible through feedback from the system or is explained to the user on request.

3. Controllability

The dialogue is controllable when the user is able to initiate and control the direction and pace of the interaction until the point at which the goal has been met.

4. Conformity with user expectations

The dialogue conforms with user expectations when it is consistent and corresponds to the user characteristics, such as task knowledge, education, experience, and to commonly accepted conventions.

5. Error tolerance

The dialogue is error tolerant if despite evident errors in input, the intended result may be achieved with either no or minimal action by the user.

6. Suitability for individualization

The dialogue is capable of individualization when the interface software can be modified to suit the task needs, individual preferences, and skills of the user.

7. Suitability for learning

The dialogue is suitable for learning when it supports and guides the user in learning to use the system.

Learn more

What is Heuristic Evaluation? wikipedia.org

Ergonomics of human-system interaction iso.org

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