Lessons from early stages design of mobile applications

This paper presents a set of lessons that resulted from the design process of several mobile applications. It starts by addressing the difficulties that emerged through the data gathering, prototyping and evaluation stages also stressing the absence of adequate techniques and methods to support these activities. We explain how these problems and challenges were solved and how they can be applied in other domains and future projects. As a result, we provide a set of guidelines for designers to apply on the development and design of mobile applications and user interfaces. The paper also addresses three case studies in which these guidelines and procedures were validated, stressing their contributions and results.

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