Evaluating HCI Design with Interaction Modeling and Mockups A Case Study

摘要

Interactive systems are increasingly present in daily life, but many people still face difficulties to use them. We believe that using models and artifacts to represent the interaction in a systematic way during systems design may prevent such difficulties. In this paper, we investigate the combined use of MoLIC, an interaction modeling language, with user interface mockups. While both artifacts are supposed to promote the understanding of user goals and the designer's reflection on alternative solutions and decisions regarding the interaction, we have not found evidence of their usage impacts on quality. Thus, this paper presents an experimental study on the joint usage of MoLIC interaction diagrams and mockups during systems design, aiming both to identify participants' perceptions on the joint use of the two artifacts and to analyze the quality of the generated artifacts by observing which types of defects would occur. The results show that, although some participants found that MoLIC diagrams were not very easy to build, most participants considered the creation of mockups based on MoLIC diagrams useful. In addition, the number of defects found in the MoLIC diagrams points to the need of developing techniques to evaluate the artifact before proceeding with the design process.