The advancement of mobile information systems is going in parallel with Geographical Information Systems where they both meet in providing location-aware services. New systems are providing a new pervasive GIS dimension where access to geographical attributes is being possible "anytime, anyplace and anyhow". In this article, we propose a system that provides mobile users with a service that corresponds not only to their requests but also to their preferences, location and querying time. Finally, we project the query results to construct a GIS map layer that is added to original GIS area map in order to provide more indications to the path that the user should follow in order to reach the demanded service.

The usability evaluation is an important element of human computer interaction. The usability which translates to ease of use is the feature that all user interfaces should have. The geospatial interfaces should then follow the basic rules of usability. In this paper, we conducted a series of usability tests for some geospatial interfaces. These interfaces were designed for local users, for example INEGI or Guía Roji in the Mexican context. The results reveal the lack of usability guidelines user testing to be performed in the cases for this type of interfaces.

ABSTRACT:Social Media Participation can be very important when you have to make an important decision about a topic related to urban planning. Textual analysis to identify the sentiment about a topic or, community detection and user analysis to identify the actors involved on a discussion can be very important for the persons or institutions that have to take an important decision. In this paper we propose a methodological design to analyse participation in social media. We study the installation of a new airport in Mexico City as a case of study to highlight the importance of conducting a study of this nature.

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