Chapter 3 - Evaluation of Interface Design Method

There are the approches used to create an evaluation paradigms,

• Empirical evaluation

• Heuristic evaluation

• Usability testing

• Observing users

Only experts will be evaluate using this approach

• Quick and dirty evaluation

• Usability testing

• Field studies

• Predictive evaluation

This evaluation gives in early of design to check users' needs are asssess to the problems or met with the design opportunity

• Quick and dirty evaluation

• Usability testing

• Field studies

• Predictive evaluation

The evaluation must produce with the product design or prototype to be evaluate by the user

• Quick and dirty evaluation

• Usability testing

• Field studies

• Predictive evalaution

Conceptual model based on activity includes,

• Usability testing

• Instructing

• Conversing

• Predictive evaluation

Direct manipulation has THREE (3) fundamental properties, EXCEPT

• continuous representation of the objects and actions of interest

• rapid reversible incremental actions with immediate feedback about the object of interest

• infrequent users can remember how to carry out operations over time

• physical actions and button pressing instead of issuing commands with complex syntax

Benefits of direct manipulation interfaces INCLUDES

• experienced users can work rapidly on a wide range of tasks

• users gain confidence and mastery and feel in control

• continuous representation of the objects and actions of interest

• helps beginners learn basic functionality rapidly

There are the evaluation techniques used for evaluation concept,

• observing users

• asking experts their opinions

• predictive evalaution

• field studies

Testing typical users on typical tasks in a controlled laboratory

• Observing user

• Asking user their opinions

• Asking experts their opinions

• User testing

Model are used to predict the efficiancy of an interface or compare performance time between versions

• Observing users

• User testing

• Asking experts

• Modelling users' task performance