Abstract[AQ2]The aim of this article is to determine whether the process of memorizing a tactile map key, or legend, can be improved by including three-dimensional (3D) symbols produced by means of 3D Printing. The method used in this study involved asking a group of 20 volunteers with different profiles to memorize eight tactile symbols from two keys, each of which had different characteristics: Key 2 included 3D tactile symbols and Key 1 had only two-dimensional (2D) tactile symbols. Results show statistically significant differences between the two keys. Use of Key 2 yielded a 48.72% reduction in the number of errors compared to Key 1 (N = 20, pvalue = .014). These data show that combining 3D with flat relief symbols (2D) improves the process of memorizing a tactile key because the 3D attributes can be distinguished from the 2D features by touch. For practitioners, this article provides data about the possibilities of 3D Printing applied to tactile maps, keys, and symbols.
KeywordsTactile key, tactile map, tactile symbol, visual impairment
ObjectiveThe aim of this article is to analyse whether including three-dimensional (3D) symbols in the key of a tactile map enables users to improve their ability to memorize it. With this objective in mind, the researchers compared two different legends: one in which the symbols were arranged in a
Design thinking with the users, is a new way to understand and create new products and services. This new conception of design is leading to new larger ideas and more complex methods in order to improve this process. The new participatory methods, generates new design concepts and also, different experiences in the project. Since the development of technologies and social media the power of collaboration has become a way of thinking, which is changing the landscape of design. Participation of users and customers in the development of products and services started to be an important issue in Design Management literature in the last years. This paper presents the evolution of the terms related to participation, their use and interrelations. We consider that they are relevant nowadays, for the interpretation and communication of the user's role in the design as developers of relevant innovations in products and processes.Since our aim is to provide and increase understanding of participation in design, across the design community and product development, we want to clarify these concepts.
This paper shows an experiment with tactile maps designed for visually impaired persons. Tests were carried out on a tactile map produced with 3D printing and including a new type of tactile symbols, volumetric symbols (3D). These symbols are localized faster than conventional flat relief symbols, with the same error rate, an improvement in the use of these tactile devices. Moreover, following tests, differences were found between types of participants with blind participants generally carrying out the proposed tasks better than the rest of users.
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