Jo Pierson

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The success of digital television will depend largely on the reactions of the final user. In this paper, we explore some of these reactions focussing on the test-introduction of digital television in Flanders (Belgium). Based on the findings of two digital interactive test-projects in Flanders, we will look more closely into three specific topics: (1) the(More)
In Online Social Networks (OSNs), it can be difficult to maintain the context of a conversation or action, i.e. to know what the situation is and how to act appropriately. The resulting uncertainties may lead to privacy issues. We focus on one issue Context Collision in this paper, and motivate that a first step to address this issue is to help users(More)
Omnidirectional video (ODV) is a type of video in which viewers can look around in 360° as if turning the camera themselves. This type of video presents opportunities for new interactive television formats. The development of such new formats, however, is accompanied by challenges in terms of user experience and technical and creative development. In(More)
Social network site users are often confronted with invisible audiences. Although various settings for managing audiences are available, we argue that these do not always match the users' interpretations. This study explores the audience-management strategies of 18 young adults when categorizing their (invisible) audiences in Facebook, using card sorting as(More)
The paper operationalizes the concept of privacy by design for social network sites (SNS), defined as evaluating and embedding privacy in the development and adjustment of SNS technology. More in particular we identify the necessary social requirements of SNS in order to optimize the privacy from a user perspective. For this, one of the application domains(More)
In this paper we present a case study of a longitudinal in-situ observation that involves a new social application for mobile communication. Our study demonstrates the need for an adaptive approach to planning, design, and implementation that is responsive to emerging social and infrastructure conditions. This represents a shift from traditional(More)