Aplicaciones de software educativo y empresarial: desarrollo de un módulo de sonificación de ecuaciones algebraico-matemáticas para sistema CASVI 2.0.

Abstract

Sonification is a technique that allows the representation of data (images, text or media) through the generation of sounds and audios that works as a descriptive tool. This technique can be used as a resource with which mathematical expressions can be represented and interpreted. The actual Curricular Integration Paper arises from the development of a sonification module for the CASVI 2.0 system, which is aimed at visually impaired users, and allows the description of mathematical expressions. For the sonication process, the use of Text to Speech tools to get a descriptive reading of the expression and the insertion of tones as audio keys, are implemented; where all the processing is executed on the Server side, using Python as programming language. In the first chapter, the State of Art of equation sonification and the State of Art of software development for visually impaired people, are investigated. Also in this chapter, different resources and tools for the implementation of the sonification module, are investigated. Finally a methodology that allows the scheduling and development of the Curricular Integration Paper, is defined. In the second chapter, the design considerations for the module are defined, allowing the module to adjust with the patterns of accessibility for visually impaired users. Also the functional and not functional requirements are established, with the aim of being pleasant for the user. Finally, with the help of a group of individuals, a series of tests are executed within a controlled scenario where the individuals simulate to be blind users, helping to determine the correct functioning of the module integrated in the system, and if is necessary, apply the corresponding correction to make the module meet all the established requirements.