David Frohlich | University of Surrey (original) (raw)

Papers by David Frohlich

Personal Technologies, 1997

With the expansion of digital photographic content stored online and concurrent proliferation of ... more With the expansion of digital photographic content stored online and concurrent proliferation of capturing devices, the management and visualization of personal photo collections have become very challenging tasks. In order to gain insight into novel ways of handling and representing large personal photo collections, this paper presents results of a user experience study into novel visualizations of multiple photo streams, sourced from different individuals or capture devices. A web-based application prototype was designed and implemented offering synchronized visualization of photo streams in a single-or multi-window display layout. An experimental study was conducted with 20 users, and the results demonstrate high user demand for concurrent presentation of multiple media streams as well as recommends methods for leveraging its potential.

Journal of Medical Internet Research

Background Being socially connected is related to well-being, and one way of avoiding social isol... more Background Being socially connected is related to well-being, and one way of avoiding social isolation is to deepen existing relationships. Even though existing relationships can be reinforced by regular and meaningful communication, state-of-the-art communication technologies alone do not increase the quality of social connections. Thus, there is a need for the involvement of a trained human facilitator in a network of older adults, preferably for a short period, to promote the deepening of their relationships. Objective This study aimed to evaluate the hypothesis that a human-facilitated, media-sharing social networking system can improve social connection in a small group of older people, who are more vulnerable to social isolation than most, and deepen their relationships over a period of a few weeks. Methods We conducted the design and evaluation of Media Parcels, a novel human-facilitated social networking system. Media Parcels is based on the metaphor of a facilitator collect...

Gerontechnology

Purpose The older population is not a homogenous group and show significant diversity in constitu... more Purpose The older population is not a homogenous group and show significant diversity in constitution, capabilities, and experience 1,2. In order for new and emerging digital technologies to be inclusive, it is crucial to encompass this diversity and employ a design process that is sensitive to it. Current approaches to inclusive design tend to seek one design for all, focusing on users who are least engaged with digital technology 3. In this paper we outline an alternative approach to inclusive design based on co-design with both digitally engaged and unengaged user groups. In our study, as part of a multidisciplinary group in the New Dynamics of Ageing (UK) funded collaborative research project, older people from different walks of life were invited to four different themed workshops called 'sandpits' to explore current and emerging technologies in a playful and creative context to help them envisage the potential implications these technologies can have in their lives as well as to identify key issues and user requirements for further development. This paper will discuss the outcome from three of those sandpits. The themes explored in these three sandpits were (i) custom computers for older people; (ii) supporting Identity and memory in later life; and (iii) social connections with new technology. Method A total of 66 older people participated in the three sandpits conducted between 2009 and 2010. Separated into PC and non-PC users groups, they were involved in discussions and shown open ambiguous envisionments that responded to the themes through hands-on demonstration, role-play or dramatic enactment of their use. Broadly taking into account the role of technology generations effects 4 , the envisionments were modeled and presented as appliances, incorporating forms of products and interactions that older people are familiar with to encourage inclusion. The older participants were then involved in the redesign of these envisionments through a collaborative design process. Results & Discussion The design responses from older PC and non-PC user groups revealed a difference in the type of embodiment they want for internet-enabled applications. Both groups redesigned the concepts based on their experience, interests, familiarity with the technology they have and its associated infrastructure or lack thereof. In general, non-PC user groups preferred the appliance nature of the envisionments, and incorporated the functions they were interested in performing, such as capturing spoken stories, sharing photographs, chatting over TV programmes, etc into these appliances. By contrast, PC owners questioned the need for separate appliances and often redesigned them as PC applications or internet services with emphasis placed on modality and compatibility with their existing infrastructure. The paper will discuss the difficulty and challenge of bridging the gap between the diversity of technology and its users.

Http Dx Doi Org 10 1080 00222895 1984 10735310, Aug 13, 2013

Conceptual and methodological problems related to Schmidt' (1975) motor schema theory are... more Conceptual and methodological problems related to Schmidt' (1975) motor schema theory are discussed. In particular, the motor schema is interpreted as representing the dynamics of the system being controlled, which may or may not be associated with a referent movement pattern. Furthermore, it is suggested that prior familiarity with a control system's dynamics is a critical but uncontrolled factor in tests of the theory, and largely accounts for their equivocal findings. These ideas are examined by two experiments in which subjects had to bimanually control the movement of a computer-displayed cursor along a track on a CRT screen. Different track orientations required different patterns of movement not entailing a single generalized motor program. Experiment 1 shows that variable track performance with a given control system, results in better transfer to novel tracks than does fixed practice. Experiment 2 demonstrates that altering the control system disrupts performance whether or not the required movements remain the same. These results indicate the need for a fundamental modification of schema theory, such that a schematic representation of effector-environment relations (effector function) is available independently of particular movement patterns used in its acquisition.

Http Www Libreriasaulamedica Com, 2004

Proceedings of the Sigchi Conference on Human Factors in Computing Systems, 1994