A Proposal to Model Interaction from the Analysis of Student - Pedagogic Conversational Agent Logs

Related Work

Evaluation is key in User Centered Designs because from the comments and opinions of the users the prototypes of the computer interactive system evolve to new versions. In order to evaluate the system, several procedures and techniques have been proposed that can be applied in different phases of the software life cycle.

Several main evaluation methods can be distinguished (see Figure 1 for a general overview based on Dix et al. 2004):

Figure 1.

Summary of the existing evaluation methods

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  Evaluation through expert analysis: heuristics, standards or cognitive walkthroughs are used to identify potential difficulties from the point of view of the expert.

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  Evaluation through user participation: users interact with the system as they would normally do when the computer application is released, and/or they complete some tasks as indicated by the researchers or to fill in some questionnaires.