Web user interface design strategy: Designing for device independence

Until recently, Web services were available only through a desktop web browser. Nowadays, methods of access move beyond the desktop computer towards ubiquitous access through portable devices. As a consequence, users have the chance to interact with a growing diversity of computing devices such as PDAs, smart phones, etc., with diverse characteristics that tend to replace conventional laptop and desktop computers. User interface designers, on the other hand, strive to design usable interfaces to cater for the diverse requirements of these devices. The design strategy proposed in this paper aims at assisting user interface designers in designing for diverse devices recommending a specific line of activities in the process of design. A case study of application of the proposed design strategy is presented, outlining its advantages

Using paper prototyping as a rapid participatory design technique in the design of MLCAT - a lecture podcasting tool

Podcasting has permeated the developed world higher education environments. Despite this, there is inadequate research published to explore podcasting in developing Higher Education Institutions. In areas with limited electricity, never mind the internet, how can podcasting succeed? This paper describes Participatory Design activities with university lecturers in sub-Saharan Africa (University of Cape Town and Makerere University) to design a podcasting tool. We postulate that by involving them in the design, we can identify specific requirements and they will accept and use the tool. Academics have heavy workloads and tight schedules and conducting design sessions with busy professionals demands preparation, improvisation, and clarity of purpose. Therefore, this paper presents the use of paper prototyping technique during the two hour Participatory Design sessions with lecturers in the design of a horizontal MLCAT prototype. In addition, we present formative evaluations that reveal insightful results which will be used in the further implementation of the tool

Teaching as a Collaborative Practice:Reframing Security Practitioners as Navigators

The need is growing for a workforce with both technical skills and the ability to navigate existing and emerging information security challenges. Practitioners can no longer depend upon process-driven approaches to people, processes and IT systems to manage information security. They need to be navigators of the entire environment to effectively integrate controls to protect information and technology. The research presented in this paper trialed an innovative tactile learning activity developed through the European Technology-supported Risk Estimation by Predictive Assessment of Socio-technical Security (TREsPASS) project with tertiary education students, designed to provide students with experience in real-world modelling of complex information security scenarios. The outcomes demonstrate that constructing such models in an educational setting are a means of encouraging exploration of the multiple dimensions of security. Such teaching may be a means of teaching social, organization and technical navigation skills necessary to integrate security controls in complex settings

Examining the use of visualisation methods for the design of interactive systems

Human-Computer Interaction (HCI) design has historically involved people from different fields. Designing HCI systems with people of varying background and expertise can bring different perspectives and ideas, but discipline-specific language and design methods can hinder such collaborations. The application of visualisation methods is a way to overcome these challenges, but to date selection tools tend to focus on a facet of HCI design methods and no research has been attempted to assemble a collection of HCI visualisation methods. To fill this gap, this research seeks to establish an inventory of HCI visualisation methods and identify ways of selecting amongst them. Creating the inventory of HCI methods would enable designers to discover and learn about methods that they may not have used before or be familiar with. Categorising the methods provides a structure for new and experienced designers to determine appropriate methods for their design project. The aim of this research is to support designers in the development of Human-Computer Interaction (HCI) systems through better selection and application of visualisation methods. This is achieved through four phases. In the first phase, three case studies are conducted to investigate the challenges and obstacles that influence the choice of a design approach in the development of HCI systems. The findings from the three case studies helped to form the design requirements for a visualisation methods selection and application guide. In the second phase, the Guide is developed. The third phase aims to evaluate the Guide. The Guide is employed in the development of a serious training game to demonstrate its applicability. In the fourth phase, a user study was designed to evaluate the serious training game. Through the evaluation of the serious training game, the Guide is validated. This research has contributed to the knowledge surrounding visualisation tools used in the design of interactive systems. The compilation of HCI visualisation methods establishes an inventory of methods for interaction design. The identification of Selection Approaches brings together the ways in which visualisation methods are organised and grouped. By mapping visualisation methods to Selection Approaches, this study has provided a way for practitioners to select a visualisation method to support their design practice. The development of the Selection Guide provided five filters, which helps designers to identify suitable visualisation methods based on the nature of the design challenge. The development of the Application Guide presented the methodology of each visualisation method in a consistent format. This enables the ease of method comparison and to ensure there is comprehensive information for each method. A user study showing the evaluation of a serious training game is presented. Two learning objectives were identified and mapped to Bloom’s Taxonomy to advocate an approach for like-to-like comparison with future studies

A Conceitualização Sobre Estruturas Aditivas e Multiplicativas no Uso de Formas de Representação Visual em Uma Interface Educativa

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