Information Systems - Theses

Permanent URI for this collection

Search Results

Now showing 1 - 10 of 13
  • Item
  • Item
    Thumbnail Image
    Data modeling : description or design?
    Simsion, Graeme C. (University of Melbourne, 2006)
  • Item
    Thumbnail Image
    Data modeling : description or design?
    Simsion, Graeme C. (University of Melbourne, 2006)
  • Item
    Thumbnail Image
    Interest-based negotiation in multi-agent systems
    rahwan, iyad ( 2004)
    Software systems involving autonomous interacting software entities (or agents) present new challenges in computer science and software engineering. A particularly challenging problem is the engineering of various forms of interaction among agents. Interaction may be aimed at enabling agents to coordinate their activities, cooperate to reach common objectives, or exchange resources to better achieve their individual objectives. This thesis is concerned with negotiation: a process through which multiple self-interested agents can reach agreement over the exchange of scarce resources. In particular, I focus on settings where agents have limited or uncertain information, precluding them from making optimal individual decisions. I demonstrate that this form of bounded-rationality may lead agents to sub-optimal negotiation agreements. I argue that rational dialogue based on the exchange of arguments can enable agents to overcome this problem. Since agents make decisions based on particular underlying reasons, namely their interests, beliefs and planning knowledge, then rational dialogue over these reasons can enable agents to refine their individual decisions and consequently reach better agreements. I refer to this form of interaction as “interested-based negotiation.” (For complete abstract open document)
  • Item
    Thumbnail Image
    Stigmergic collaboration: a theoretical framework for mass collaboration
    Elliott, Mark Alan ( 2007-12)
    This thesis presents an application-oriented theoretical framework for generalised and specific collaborative contexts with a special focus on Internet-based mass collaboration. The proposed framework is informed by the author’s many years of collaborative arts practice and the design, building and moderation of a number of online collaborative environments across a wide range of contexts and applications. The thesis provides transdisciplinary architecture for describing the underlying mechanisms that have enabled the emergence of mass collaboration and other activities associated with ‘Web 2.0’ by incorporating a collaboratively developed definition and general framework for collaboration and collective activity, as well as theories of swarm intelligence, stigmergy, and distributed cognition. (For complete abstract open document)
  • Item
    Thumbnail Image
    Online vicarious-experience: using technology to help consumers evaluate physical products over the Internet
    SMITH, STEPHEN PATRICK ( 2006-09)
    This research investigates ways to help shoppers evaluate physical products via the Internet. The primary research issue is, therefore, how to provide experience vicariously. The study was undertaken in three parts. First, an extensive range of Web sites belonging to Internet-based retailers was examined, together with literature on vicarious experience and Web page design. These helped to explore the question of ‘What components of Web-based representations of physical products might assist shoppers when trying to evaluate those products as part of a purchase decision?’ Online store systems that are representative of the main communication styles found in the Web survey were then evaluated in a series of laboratory-based experiments. This second part of the study makes a broad assessment of the impact of representative technologies on the product evaluation process. Finally, a smaller-scale, more targeted investigation was conducted, also using a laboratory-based experiment. This third part of the study assesses the impact of an individual’s evaluation style on the perceived success of representative technologies.
  • Item
    Thumbnail Image
    Indexing to situated interactions
    Paay, Jeni ( 2006-02)
    Computing is increasingly pervading the activities of our everyday lives: at work, at home, and out on the town. When designing these pervasive systems there is a need to better understand and incorporate the context of use and yet there are limited empirical investigations into what constitutes this context. The user’s physical and social situation is an important part of their context when operating in an urban environment and thus needs to be understood and included in the interaction design of context-aware pervasive computing. This thesis has combined ideas from human computer interaction (HCI) and architecture to investigate indexicality in interface design as an instrument for incorporating physical and social context of the built environment into context-aware pervasive computing. Indexicality in interface design is a new approach to designing HCI for pervasive computing that relies on knowledge of current context to implicitly communicate between system and user. It reduces the amount of information that needs to be explicitly displayed in the interface while maintaining the usefulness and understandability of the communication.
  • Item
    Thumbnail Image
    An investigation of interactivity and flow: student behaviour during online instruction
    PEARCE, JON MALCOLM ( 2004-12)
    This thesis combines ideas from human-computer interaction, education and psychology to explore the interactions of students in an online learning environment. The motivation for the work was to understand better how to engage students in a highly enjoyable experience of online learning. The thesis describes three experiments. The first experiment was an exploratory study investigating the influence of learner interactions in an online physics learning task. Students worked through an online learning experience that offered high and low levels of interactivity. The aim was to explore their interactions and choices in an environment in which they could elect to move from the highly interactive mode to the less interactive mode at any time. Web logs were used to track their interactions and question probes gathered data on their emotions, learning goals and strategies. The analysis revealed a number of different patterns of interaction. Statistical analysis showed that most, but not all, preferred to follow an interactive path through the material. Students who used the interactive materials showed improved learning gains in transfer-style questions compared to those in the less interactive mode. Several issues were identified as important to consider in a follow-up study: emotions, affect, challenge, and the degree of control that the learner perceives.
  • Item
    Thumbnail Image
    Innovation in university computer-facilitated learning systems: product, workplace experience and the organisation
    Fritze, Paul A. ( 2003-06)
    This thesis reports on the development of a generic online system to support learning and teaching at the University of Melbourne. New online technologies, the fostering of innovation at national and university levels and my position within a central educational unit provided the opportunity in 1996 to adapt a previous software package for online use. My observations of the problematic nature of computer-facilitated learning (CFL) production led me to take an open approach to the development, seeking both a practical product and enhanced understanding. A series of formative questions defined the scope and goals of the study, which were to: *produce a generic online learning system; *increase understanding of the workplace experience of that development; and *develop an organisational model for the further development of generic CFL systems. Given this multi-disciplinary focus, many paradigms in the literature could potentially have guided the study. A number of these aligning with the research purposes, context and constructivist philosophy of the study, were reviewed from the perspectives of learning, CFL development and the organisation.
  • Item
    Thumbnail Image
    Custom as a source of supranational internet commerce law
    Polanski, Paul Przemyslaw ( 2003)
    The Internet has changed the world. Its impact on the global society has been enormous, redefining almost every aspect of our life. It has also added a new quality to traditional commerce that in many instances has drastically transformed the way companies and individuals trade. However, electronic commerce is not a legally safe environment, as there exists a regulatory gap that introduces uncertainty surrounding rights and obligations in cyberspace. This may result in unexpected outcomes for e-commerce participants involved in litigation.