Human-computer interaction for development (HCI4D):the Southern African landscape

Human-Computer interaction for development (HCI4D) research aims to maximise the usability of interfaces for interacting with technologies designed specifically for under-served, under-resourced, and under-represented populations. In this paper we provide a snapshot of the Southern African HCI4D research against the background of the global HCI4D research landscape.We commenced with a systematic literature review of HCI4D (2010-2017) then surveyed Southern African researchers working in the area. The contribution is to highlight the context- specific themes and challenges that emerged from our investigation

Demarcating mobile phone interface design guidelines to expedite selection

Guidelines are recommended as a tool for informing user interface design. Despite a proliferation of guidelines in the research literature, there is little evidence of their use in industry, nor their influence in academic literature. In this paper, we explore the research literature related to mobile phone design guidelines to find out why this should be so. We commenced by carrying out a scoping literature review of the mobile phone design guideline literature to gain insight into the maturity of the field. The question we wanted to explore was: “Are researchers building on each others’ guidelines, or is the research field still in the foundational stage?” We discovered a poorly structured field, with many researchers proposing new guidelines, but little incremental refinement of extant guidelines. It also became clear that the current reporting of guidelines did not explicitly communicate their multi-dimensionality or deployment context. This leaves designers without a clear way of discriminating between guidelines, and could contribute to the lack of deployment we observed. We conducted a thematic analysis of papers identified by means of a systematic literature review to identify a set of dimensions of mobile phone interface design guidelines. The final dimensions provide a mechanism for differentiating guidelines and expediting choice

A framework to maximise the communicative power of knowledge visualisations

Knowledge visualisation, in the field of information systems, is both a process and a product, informed by the closely aligned fields of information visualisation and knowledg management. Knowledge visualisation has untapped potential within the purview of knowledge communication. Even so, knowledge visualisations are infrequently deployed due to a lack of evidence-based guidance. To improve this situation, we carried out a systematic literature review to derive a number of “lenses” that can be used to reveal the essential perspectives to feed into the visualisation production process.We propose a conceptual framework which incorporates these lenses to guide producers of knowledge visualisations. This framework uses the different lenses to reveal critical perspectives that need to be considered during the design process. We conclude by demonstrating how this framework could be used to produce an effective knowledge visualisation

The Equity Premium and Risk-Free Rate Puzzles in a Turbulent Economy: Evidence from 105 Years of Data from South Africa

This paper presents a detailed empirical examination of the South African equity premium; and a quantitative theoretic exercise to test the canonical inter-temporal consumption-based asset-pricing model under power utility. Over the long run, the South African stock market produced average returns six to eight percentage points above bonds and cash; and at the 20-year horizon, an investor would not have experienced a single negative realised equity premium over the entire 105-year period we examine. Yet, the maximum equity premium rationalised by the consumption-based model is 0.4%. The canonical macro-financial model closely matches the average risk-free rate, using realistic parameters for the coefficient of risk aversion and a positive rate of time preference.consumption-based asset pricing; stochastic discount factor; equity risk premium puzzle; risk-free rate; risk aversion coefficient; South Africa

Human-Computer Interaction for Development: A knowledge mobilisation framework

Human-computer interaction for development (HCI4D) is an interdisciplinary field aimed at understanding and designing technologies for under-served, under-resourced, and under-represented populations around the world. The interdisciplinary nature complicates knowledge transfer and articulation between the disciplines contributing to the HCI4D domain with the consequence that researchers in one sub-domain do not always build on the extant theoretical and methodological progress in other sub-domains. The purpose of this paper is to propose a framework for HCI4D that could facilitate a better understanding of this domain, for knowledge mobilisation and articulation between researchers in HCI4D and the related field of information and communication technology for development (ICT4D). Previous studies have presented an overview of the HCI4D field in terms of the geographies it covers, technologies it targets, and its varied epistemological and methodological underpinnings. This paper builds on those methodologies and findings to conduct a systematic literature review which revisits the domain questions, thus, the core issues and topics (why), the phenomenon of interest (what) and the research methods (how). A comparison of the findings from three seminal HCI4D papers led to the identification of three core issues (motor themes) namely, context, design and development. Based on Ward’s idea of a knowledge mobilisation framework, the findings from the systematic literature review are then synthesised and presented as a framework which comprises the core issues, recurring themes and the salient elements for each of the domain questions. The contribution is a knowledge mobilisation framework to enrich discussions on positioning HCI4D as research field

Clinical records in general practice

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Development informatics research and the challenges in representing the voice of developing country researchers: A South African view

Indigenous or local researchers from developing countries have not made a leading contribution to development informatics (DI) or information and communication technologies for development (ICT4D) research. This is noteworthy since these researchers should be in a prominent position to contribute to the discourse, where context knowledge is regarded as vital. Furthermore, a dependence on foreign scholarly direction can create a gap between research and reality in a way that affects the success of ICT programmes in African countries. Extant literature highlights this problem, but most studies stop short of considering the causes and proposing how to amplify the voice of developing country researchers. This paper documents the ICT4D/DI research discourse that took place during four seminal academic events in South Africa during the period 2012 to 2015. Those discussions are presented and analysed here to contribute to the wider discourse on ICT research and practice in developing countries, with the aim of enhancing the research contribution of developing countries. An interpretivist, involved researcher analysis of the workshop reports is conducted to gain an improved understanding of the South African ICT4D/DI researcher’s challenges to proportional participation. While this study takes a South African perspective, many of the findings could apply to researchers in other developing countries.CA2016www.wits.ac.za/linkcentre/aji