Knowledge mediation in software quality engineering

The risk of failure of the software development process remains high despite many attempts to improve the quality of software engineering. Contemporary approaches to process assurance, such as the capability maturity model have not prevented systemic failures, nor have project management methodologies provided guarantees of software quality. The paper proposes an approach to software quality assurance based on a knowledge mediated concurrent audit, which incorporates essential feedback processes. Through a tightly integrated approach to quality audit, programmers would be empowered to use any chosen methodology to advantage, supported by intelligent monitoring of the essential interactions which occur in the development process. An experimental application implementing some aspects of the proposal is described

Extensive, economical and elegant : the habitus of gentility in early nineteenth century Sydney

This paper challenges the modern expectation that mahogany furniture and silver cutlery were self-evident indicators of gentry status in colonial Sydney through close analysis of a bundle of middle class household inventories of the 1840s. They are considered as evidence of habitus--the structuring interaction of mentality with the material world--in order to demonstrate the active principle of consumption in the claim or assertion of bourgeois standing, which was particularly lively in the colony. A range of competences can he seen in the practice of gentility, which suggests that the possession of rosewood rather than mahogany, or imitation silver rather than sterling, was a variation shaped not merely by wealth but by cultural capital. This exposes strands of contingency, competition and compromise in middle class expression.

Introduction : Alice's adventures in wonderland and through the looking glass

 Signature edition

Alien aesthetics

Melbourne was visited by Bruce Sterling, one of the founders of the science fiction genre of cyberpunk, for the very first time. Bruce's work as a future thinker and visionary who has been shaping the forefront of design and technology can be followed at his Wired column, Beyond the Beyond. His public lecture at Deakin Edge on August 18th tackled the bleeding edge of contemporary culture: Alien Aesthetics. The idea of Alien Aesthetics is better known through the work of Ian Bogost. According to Bogost, Alien Aesthetics is not concerned with trying to "satisfy our human drive for art and design, but to fashion design fictions". These kinds of alien design fictions can be seen in the images produced by Google's Inceptionism, which capture the deep dreams of artificial neural networks. Alien Aesthetics is also present in pop culture, as in the work of artist Holly Herndon, whose new album Platform has been heralded as a fusion between critical thinking about technology and creative exploration of what she calls "alien sounds". This kind of cross-pollination between contemporary theory and creative practice also took place at a free parallel event at LOOP Bar on August 17th: Conversations about Alien Aesthetics. This event was organised by a partnership between the School of Communication and Creative Arts at Deakin University and The New Centre of Research & Practice, a global research platform dedicated to transdisciplinary exchanges between art and science, and featured local and virtual speakers from the United Kingdom, United States, Canada and Brazil.

Economic evaluation of a group-based exercise program for falls prevention among the older community-dwelling population

BACKGROUND: Falls among older people are of growing concern globally. Implementing cost-effective strategies for their prevention is of utmost importance given the ageing population and associated potential for increased costs of fall-related injury over the next decades. The purpose of this study was to undertake a cost-utility analysis and secondary cost-effectiveness analysis from a healthcare system perspective, of a group-based exercise program compared to routine care for falls prevention in an older community-dwelling population.

METHODS: A decision analysis using a decision tree model was based on the results of a previously published randomised controlled trial with a community-dwelling population aged over 70. Measures of falls, fall-related injuries and resource use were directly obtained from trial data and supplemented by literature-based utility measures. A sub-group analysis was performed of women only. Cost estimates are reported in 2010 British Pound Sterling (GBP).

RESULTS: The ICER of GBP£51,483 per QALY for the base case analysis was well above the accepted cost-effectiveness threshold of GBP£20,000 to £30,000 per QALY, but in a sensitivity analysis with minimised program implementation the incremental cost reached GBP£25,678 per QALY. The ICER value at 95% confidence in the base case analysis was GBP£99,664 per QALY and GBP£50,549 per QALY in the lower cost analysis. Males had a 44% lower injury rate if they fell, compared to females resulting in a more favourable ICER for the women only analysis. For women only the ICER was GBP£22,986 per QALY in the base case and was below the cost-effectiveness threshold for all other variations of program implementation. The ICER value at 95% confidence was GBP£48,212 in the women only base case analysis and GBP£23,645 in the lower cost analysis. The base case incremental cost per fall averted was GBP£652 (GBP£616 for women only). A threshold analysis indicates that this exercise program cannot realistically break even.

CONCLUSIONS: The results suggest that this exercise program is cost-effective for women only. There is no evidence to support its cost-effectiveness in a group of mixed gender unless the costs of program implementation are minimal. Conservative assumptions may have underestimated the true cost-effectiveness of the program.

Randomised controlled trial of a digitally assisted low intensity intervention to promote personal recovery in persisting psychosis: SMART-Therapy study protocol

BACKGROUND: Psychosocial interventions have an important role in promoting recovery in people with persisting psychotic disorders such as schizophrenia. Readily available, digital technology provides a means of developing therapeutic resources for use together by practitioners and mental health service users. As part of the Self-Management and Recovery Technology (SMART) research program, we have developed an online resource providing materials on illness self-management and personal recovery based on the Connectedness-Hope-Identity-Meaning-Empowerment (CHIME) framework. Content is communicated using videos featuring persons with lived experience of psychosis discussing how they have navigated issues in their own recovery. This was developed to be suitable for use on a tablet computer during sessions with a mental health worker to promote discussion about recovery.

METHODS/DESIGN: This is a rater-blinded randomised controlled trial comparing a low intensity recovery intervention of eight one-to-one face-to-face sessions with a mental health worker using the SMART website alongside routine care, versus an eight-session comparison condition, befriending. The recruitment target is 148 participants with a schizophrenia-related disorder or mood disorder with a history of psychosis, recruited from mental health services in Victoria, Australia. Following baseline assessment, participants are randomised to intervention, and complete follow up assessments at 3, 6 and 9 months post-baseline. The primary outcome is personal recovery measured using the Process of Recovery Questionnaire (QPR). Secondary outcomes include positive and negative symptoms assessed with the Positive and Negative Syndrome Scale, subjective experiences of psychosis, emotional symptoms, quality of life and resource use. Mechanisms of change via effects on self-stigma and self-efficacy will be examined.

DISCUSSION: This protocol describes a novel intervention which tests new therapeutic methods including in-session tablet computer use and video-based peer modelling. It also informs a possible low intensity intervention model potentially viable for delivery across the mental health workforce.