Making mashups actionable through elastic design principles

This paper discusses motivations and requirements leading to elastic environments where relevant information and the functions that can be performed on it can be shaped by end users at runtime. As a solution for creating elastic environments, a framework is presented which exploits methods for the mashup of heterogeneous resources and elastic features that permit the easy transition of information between different task contexts according to the recently proposed notion of transformative user experienc

Principles for Human-Centred Design of IR Interfaces

Since the ‘80s, Human-Computer Interaction (HCI) researchers have performed a lot of work to identify principles, techniques, and methodologies that can support design, evaluation and implementation of interactive systems that fulfill needs and expectations of their users. This chapter discusses con- cepts, such as usability and user experience, which are of great importance for the success of interactive systems, illustrating how Human-Centred Design is fundamental to create successful user interfaces. Principles proposed by the HCI community to support interface design are presented, analyzing the princi- ples that have a major impact on IR interfaces

Los límites de la obligatoriedad escolar en Buenos Aires, 1884-1915 The limits of compulsory schooling in Buenos Aires, 1884-1915

En este artículo pretendemos enriquecer el marco explicativo que inquiere en las razones del hiato entre el trazado ideal y la constitución efectiva del sistema público de instrucción en Argentina en el periodo que va desde la sanción de la Ley 1.420 hasta la entrada en la década de 1910. Nos interesará dejar asentado que tal distancia no dependió únicamente de las limitaciones materiales con las que se enfrentaron las autoridades escolares, o de las decisiones de los padres con respecto de la asistencia de sus hijos a la escuela, sino que la misma estuvo enraizada en un elemento más profundo, del orden de las representaciones, que desde muy temprano funcionó como un impedimento para la realización de la vocación educativa pretendidamente ecuménica de las élites argentinas. De hecho, las posturas educativas universalistas convivieron con ostras que rechazaban la posibilidad e incluso la conveniencia de que todos los niños se educaran en escuelas comunes, aparente contradicción que atravesó los discursos y las prácticas de casi todos los miembros de las élites, incluyendo los de los adalides de la "educación popular". A través del análisis y de la puesta en relación de la ley de Educación común (Ley n.1.420/1884) y la Ley de Reglamentación del Trabajo de Mujeres y Niños (Ley n.5.291/1907), exploraremos cómo se fueran estableciendo los criterios que desde temprano determinaron que "niños" podrían convertirse en alumnos, y cuáles no.<br>In this article we intend to enlarged the explanatory frame concerning the reasons for the gap between the ideal conception and the effective establishment of the public instruction system in Argentina in the period that ranges from the signing of Act 1420 to the beginning of the 1910's. It is important to point out that such distance did not depend exclusively on the material constraints faced by school authorities or on the decisions of parents concerning their children attendance of school, but these very constraints were rooted in a more profound element, at the level of representations, which worked as an obstacle to the fulfillment of the supposed ecumenical vocation of schooling of Argentine elites. Actually, universalis views concerning education existed along with other which rejected the possibility and even the desirability of educating all children in public schools. This apparent contradiction was found in the discourses and practices of almost all members of the elites, including those of the advocates of "popular education". By relating the Public Education Act (Act n.1.420/1884) and the Act for Female and Child Labor Regulation (Act n.5.291/1907), we intend to verify how the very first criteria concerning which "children" could become students and which could not were established