Evaluation

At this point the refinement will be evaluated using cooperative and heuristic evaluation to discover any further refinements. The evaluations will place the prototype into one of the scenarios developed with a number of personas.

There are many types of evaluation that could have been followed:

Heuristic Evaluation – is an evaluation technique which analyses a product against a set of principles known as heuristics.

We have chosen to use heuristic evaluation due to a number of reasons:

• The evaluation can be based upon the personas and applied to the scenarios which is a key component of user-centred design
• The evaluation offers a quick indication into the current state of the system/product
• The evaluation can be conducted early in the development cycle

Co-operative Evaluation - “The technique encourages design teams and users to collaborate in order to identify usability issues and their solutions. Users work with a prototype as they carry out tasks set by the design team”[1].

We have chosen to use co-operative e evaluation due to a number of reasons:

• User involvement at the evaluation stage.
• If any problem arises they can be clarified and solved with the users' help.

Think-Aloud - “is a form of observation where the user is asked to talk through what he is doing as he is being observed; for example, describing what he believes is happening, why he takes an action, what he is trying to do”[2].

Interviews - is a technique used to gather information about the user's thoughts and preferences on particular issues. This technique is not suitable as the children may have difficulty in expressing themselves, hence, invalid results.

[1] Source
[2] Source