Measuring children's behaviors and experiences has been one of the core interests of the field of Child-Computer Interaction. However, maintaining children's engagement in the evaluation process is one of the challenges that researchers need to meet. In this paper we introduce Playful Booth, a system that aimed at engaging children in playful photo taking practices with the goal of capturing their social interactions over prolonged periods of time. We then present a 4-week-long deployment of Playful Booth with a total of seventy children that aimed at addressing three research questions. First, does playful booth create initial engagement on children and does it sustain this engagement over prolonged periods of time? Second, can the deployment be sustained for prolonged periods of time with minimal resources? Last, do behavioral data as captured from playful booth reflect children's actual social participation in the school community?

Awareness campaigns aiming to highlight the accessibility challenges affecting people with disabilities face an important challenge. They often describe the environmental features that pose accessibility barriers out of context, and as a result public cannot relate to the problems at hand. In this paper we demonstrate that contextual cues can enhance people's perception and understanding of accessibility. We describe a two-week study where our participants submitted reports of inaccessible spots all over the city through a web application. Using a 2x2 factorial design we contrast the impact of two types of contextual cues, visual cues (i.e., displaying a picture of the inaccessible spot) and location cues (i.e., ability to zoom-in the exact location). We measure participants' perceptions of accessibility and how they are challenged to consider their own limitations and barriers that may also affect themselves in certain circumstances. Our results suggest that visual cues led to a bigger sense of urgency while also improving participants' attitude towards disability.

Abstract. Equal access to education has recently been declared by the United Nations a basic human right [14]. However, despite the substantial attention given to inclusive education in recent years, researchers have criticized a lack of empirical evidence on how exclusion is manifested in student behavior. Recent development in sensor technology and social network analysis techniques can provide a new perspective to the impact of educational practices through the measurement of students' social interactions. In this paper we outline our research agenda that aims at a) measuring the current stand as well as the impact of inclusive educational interventions using sensor technology and sociometric analysis, and b) challenging pupils' perceptions of diversity with the aim of eliminating discriminatory behaviors in primary schools using persuasive games.

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We're currently involved in a project that aims to increase security in sensitive (medical or administrative) transactions in unfriendly environments. Such environments are typical in areas with major telecommunication infrastructure deficiencies. In particular, we hope to reduce intermittent communications, which cause breaks in the flow of communication, and identify organizational aspects that influence the design and use of deployed services. We're also researching usability issues that hinder user acceptance, as well as the loss of information in failed transactions, which reduces users' confidence in the services deployed.We've defined a model of communications in which all entities involved in communication exchange and share the same piece of information. These pieces of information, called Contract Documents (CDs), whose scheme is based on previously defined transaction to be