Software warehouse and software mining : the impact of data mining to software engineering

Automating Software Engineering is the dream of software Engineers for decades. To make this dream to come to true, data mining can play an important role. Our recent research has shown that to increase the productivity and to reduce the cost of software development, it is essential to have an effective and efficient mechanism to store, manage and utilize existing software resources, and thus to automate software analysis, testing, evaluation and to make use of existing software for new problems. This paper firstly provides a brief overview of traditional data mining followed by a presentation on data mining in broader sense. Secondly, it presents the idea and the technology of software warehouse as an innovative approach in managing software resources using the idea of data warehouse where software assets are systematically accumulated, deposited, retrieved, packaged, managed and utilized driven by data mining and OLAP technologies. Thirdly, we presented the concepts and technology and their applications of data mining and data matrix including software warehouse to software engineering. The perspectives of the role of software warehouse and software mining in modern software development are addressed. We expect that the results will lead to a streamlined high efficient software development process and enhance the productivity in response to modern challenges of the design and development of software applications.

An evaluation of personal greenhouse gas calculators

Personal greenhouse gas calculators (PGGC) are important tools to raise awareness of the impact of personal behaviour on carbon dioxide emissions. Per capita, Australians are the highest emitters of greenhouse gases in the world and the task for them to reduce emissions to sustainable levels will be particularly challenging. This paper reviews six PGGC promoted in Australia and evaluates them for their consistency. The emissions for an individual currently practicing a modest green lifestyle are calculated and compared. Emission calculations were found to differ by an order of magnitude in some cases. It was also found that users of PGGC are not adequately informed about the limitations of the calculators. The adoption of modest and radical green lifestyles reduced greenhouse gas emissions to 83% and 53% of the average Australian, indicating that behavioural changes by consumers alone will be insufficient to reduce emissions to sustainable levels.

A case for cross layer design: the impact of physical layer properties on routing protocol performance in MANETs

In this work we evaluate the performance of routing protocols for mobile ad hoc networks using different physical layer models. The results obtained show that the performance results obtained using idealized models such as the free space propagation model vary significantly when propagation effects such as path loss and shadowing are considered. This difference in performance indicates that optimization is required in the protocol development space that takes into account channel state information (CSI). Such an optimization requires a cross layer approach to be adopted and a framework for protocol performance evaluation to be established. We believe that this work would serve as a first step in this direction. We provide comparative performance results through network simulations.

The potential of a methodology for university-wide multimedia and educational technology evaluation

This paper reports on the methodology used for a review conducted at the University of Melbourne to determine the impact on teaching, learning and student study habits of multimedia and educational technology. Of particular methodological interest among the multiple components of the review was a quasi-controlled study of student attitudes towards and experiences of using educational technology. These were gathered using a targeted student sample comprising students known to have studied units in which well-established and highly peer rated IT products are deployed and a random student sample stratified to be representative of the typical student experience of the university. The paper reports the outcomes and effectiveness of this methodology.

Ethical performance evaluation (EPE) in business practices: framework and case illustrations

Purpose – A set of principal parameters (i.e. time, context, gap, outcome, and consequence) influences the ethical performance evaluation (EPE) of business practices in the marketplace and society. The purpose of this paper is to describe a managerial framework of EPE based upon these parameters.

Design/methodology/approach – Case illustrations are used to underpin the introduced managerial framework of EPE.

Findings – The EPE of business practices is not only dependent upon the ethical values and principles of today, but those principles of tomorrow may be equally, or even more, crucial. The EPE of business practices is also dependent upon the surrounding context and its specific ethical values and principles. Furthermore, it is dependent upon the gap between different perceptions of ethical values and principles and if the outcome of the corporation's ethical values and principles are proactive or reactive in relation to the reigning ethical values and principles in the marketplace and society. Finally, it is also dependent upon the potential and eventual consequences of ethical values and principles.

Research limitations/implications – The only way that we can “objectively” evaluate past ethical values and principles is through the use of ethical values and principles at the time and in respect to the context at hand. Research tends to fail when considering the longitudinal and evolutionary dimensions in the exploration of ethical values and principles in business practices. There is too much focus upon on-the-spot-accounts in the past and in current research efforts. An important area for further research is how to deal with the durability and variability of ethical values and principles in business practices in the marketplace and society. The key may be a stronger emphasis on longitudinal research efforts that may explore them over time and as contexts evolve. Ethical values and principles are connected and re-connected over time and across contexts in one way or another. They have a past, a current status and a future.

Practical implications – The decision as to whether business practices are ethical or unethical is – relatively speaking – easy to determine from a narrow perspective, however, the decision whether business practices are ethical or unethical becomes complicated as the perspective is widened and deepened. An introduced managerial framework of EPE provides a generic foundation and structure to examine the acceptability versus unacceptability of business practices.

Originality/value – The paper introduces a managerial framework of EPE, followed by case illustrations. It addresses the impact of time on ethical values and principles in any context on the potential and eventual gaps, outcomes and consequences in business practices. The managerial framework of EPE may also be used in non-business areas whenever found applicable and convenient to use.

How practice size impacts on the implementation and dissemination of post occupancy evaluation

There has been much research on the subject of environmentally sustainable design (ESD), with emerging techniques and technologies improving rapidly and informing sustainability higher education teaching to architects and prospective architects. By examining the success of sustainable designs using post occupancy evaluations, architectural practices might also increase their knowledge of sustainable building practice. Post occupancy evaluations could be useful for improving the designs of future buildings and the design processes that generated them. This paper aims to evaluate these claims by asking: "Do sustainable design practices use the feedback gained from post occupancy evaluations?," "How does the feedback refine the design process?," "How is the information gained in these evaluations absorbed within the firm's design practices?," and, "Does the size of a practice impact on its implementation and
dissemination of POE?" This paper investigates the questions posed above through the questioning of architectural practices that have gained a reputation for environmentally sustainable design by having a strong sustainable design philosophy and/or by being recognised for this by winning a sustainability design award. The interviewed practices will have provided some form of post occupancy evaluation as a service or employed them to add to their own knowledge.

Evaluation of an internet-based physical activity intervention: a preliminary investigation

The Internet has the potential for delivering innovative, interactive physical activity (PA) interventions to large numbers of people. This study was designed to test the efficacy of an Internet intervention that consisted of a Web site plus 12 weekly e-mail tip sheets, compared with a waiting list control group. The Internet intervention was theory based and emphasized clear, graphical presentation of PA information. Sixty-five (30 intervention and 35 control) sedentary adult employees of several large hospitals (9 men and 56 women) were randomly assigned to 1 of the 2 study arms. Of the 65 participants, 57 completed the 1-month follow-up, and 52 completed the 3-month follow-up. At both 1 and 3 months, those in the intervention group were significantly more likely to have progressed in stage of motivational readiness for PA than participants in the control group: 1 month, c2(1, N =52) =4.05, p <.05; 3 months, c2(1, N =52) =6.45, p <.01. We hypothesized that at 1 and 3 months, the intervention group would exhibit significant increases relative to the control group on the number of minutes of moderate activity. At the 1-month assessment, the intervention group did exhibit significant increases, relative to the control group in moderate minutes, F(1, 54) =5.79, p <.05; however, at the 3-month assessment this difference was no longer significant. In addition, secondary analyses were conducted to examine total number of minutes of walking reported. At 1 month, the intervention group did exhibit significant increases, relative to the control group, in walking minutes, F(1, 54) =12.1, p <.001. At the 3-month assessment, amount of time spent in walking activity continued to be significantly higher for the intervention group compared with the control group, F(1, 48) =5.2, p <.05. These findings show that a theoretically based PA Web site and weekly e-mail tip sheets can have a short-term impact on PA motivation and behavior both at 1 and 3 months. As Internet access increases, and as bandwidth and other technical attributes of this medium improve, Web site delivered health behavior interventions will become increasingly useful in public health promotion.

Measurement of the economic impact of visual impairment from age-related macular degeneration in Australia

The purpose of this report was to: (i) outline the potential value of health economic studies into age-related macular degeneration (AMD); (ii) provide an overview of health economic studies pertinent to AMD; and (iii) outline the basic frame work of cost-of-illness studies (a useful first step in applying economic methods). The detection and management of sensory loss in the elderly plays a key role in the Australian Government's Healthy Ageing Strategy. Age-related macular degeneration is currently the leading cause of blindness in elderly Australians. Although a large proportion of AMD cases remain untreatable, the introduction of photo­dynamic therapy provides a relatively expensive and possibly cost-effective innovation for others. Antioxidant therapy has also been proven effective in reducing progression of early to late disease. The discipline of economics can contribute to an understanding of AMD prevention and treatment through: (i) describing the current burden of disease; (ii) predicting the changes in the burden of disease over time, and (iii) evaluating the efficiency of different interventions. Cost-of-illness studies have been performed in many fields of medicine. Little work, however, has been done on describing the economic impact from AMD. A number of different economic evaluation methods can be used in judging the efficiency of possible interventions to reduce the disease burden of AMD. Although complementary in nature, each has specific uses and limitations. Studies of the economic impact of eye diseases are both feasible and necessary for informed health care decision-making.

Equity-focused health impact assessment framework

Background to the Development of the Equity-Focused HIA Framework
The equity focused health impact assessment (EFHIA) framework arises out of a two year research project funded for the most part by the Australian Government’s Public Health Education Research Program (PHERP) Innovations Grants (Round 2) scheme. This project had as its primary objective the development of a framework for health inequalities impact assessment, subsequently renamed equity focused health impact assessment. A partnership between the University of Newcastle, Deakin University and the University of New South Wales (the Project Management Steering Committee) received the funding and the Australasian Collaboration for Health Equity Impact Assessment (ACHEIA) was formed to undertake appropriate background research and to develop, pilot test, modify and disseminate the framework. The work commenced in September 2002 and concluded in October 2004. Part of the funding included a capacity building workshop in August 2004. ACT Health and the Division of Medicine at the John Hunter Hospital, Newcastle, also provided financial support for the project. The August 2004 Workshop was supported by NSW Health. All participants and organisations involved in the project gave extensive in-kind support.
The aims of the workshop were to bring together an international collaboration of multidisciplinary investigators, public health experts, and key senior health managers working in national, state and local settings, to inform the further development of the framework and to provide training in its application. The initial goals of the project were to work collaboratively to develop a strategic framework to assess the health inequalities of public health-related policies, plans, strategies, decisions, programs and services. The EFHIA framework as presented at the August workshop was developed through:
1. an extensive review of the relevant literature
2. formal and informal consultation with members of ACHEIA (the international
reference group), members of the Project Management Steering Committee and
other relevant experts; and
3. testing of the draft EFHIA framework with the 5 case study partners – who applied the draft framework in a range of health settings (see
Acknowledgements).
The result of this work has been the development of an equity focused health impact assessment framework that can be used to determine the unanticipated and systemic health inequities that may exist within the decision making processes or activities of a range of organisations and sectors. The EFHIA framework provides one approach that can be used to assist decision makers to put equity and health on their agenda in a more obvious and systematic way. The framework represents a ‘moment in time’ rather than a definitive statement or ‘toolkit’ on the best way to proceed. Further practice, refinement and adjustment will be needed over many years to consolidate both HIA and EFHIA. As well as this guide to the framework, additional outputs from the project team include:
- A literature review
- A position paper
- A report on the five case studies
- An evaluation report.
With the consent of the Australian Government, a monograph will be made available to workshop participants at the end of October which contains the framework and the appropriate background papers.

The impact of information and communications technology on teaching and design of flexible, online and distance education courses at Deakin University

This paper describes the use of an online learning environment which has been established for postgraduate students studying at Master’s level in Professional Education and Training Deakin University. A detailed evaluation of the use of computer conferences in an Open and Distance Education specialism was undertaken during 2000 as part of a CUTSD funded project, Learner Centred Evaluation of Computer Facilitated Learning Projects in Higher Education. As the Open and Distance Education specialism is being revised and new units are written, the information gathered in this evaluation is being integrated into the pedagogical planning and the technological decisions being made about the design of the new master’s program.

Student evaluations and the impact on curriculum, teaching and assessment

This presentation discusses some of the major pressures on universities to frame curriculum around employability skills and professional requirements. Recent evaluation of Australian university courses by graduates suggests that many institutions remain perplexed as to how to do this. The presentation suggests that the student evaluations do not necessarily indicate poor curriculum development but possibly a lack of making skill development more overt through teaching and assessment. The main objective of this presentation is to outline and describe a project on how curriculum needs to and can respond to professional needs and what this may entail for the way in which traditional professional courses are taught and assessed. The presentation seeks to involve participants in identifying and discussing options for the teaching and assessment of skills and possible options for how these skills can be progressively developed throughout a course of study.

Considering if there is a need to measure the social impact of charities?

This paper proposes that a multidimensional measure of charities’ social impact should be developed. This would allow donors to evaluate the potential social benefit of giving to one cause or another. While such a multidimensional approach would be complicated, it could build on the literature suggesting that firms be measured using triple bottom line accounting and those used to evaluate firms for inclusion for ethical investing.

The impact of consumer ethnocentrism and country of origin sub-components for high involvement products on young Chinese consumers' product assessments

Purpose – The purpose of this paper is to examine the effect of country of origin (COO) sub-components (i.e. design, assembly and parts), as well as the extent to which consumer ethnocentrism tendencies interact with these COO sub-components for young Chinese consumers with regards to product quality assessments and purchase intentions.

Design/methodology/approach – A 2?×?2?×?2 factorial experimental design was used to examine the effects of the three sub-components of COO with two levels of sourcing location – Home (China) and Foreign (Germany), for two high involvement products (an automobile and a digital camera). Chinese students in China represented the sample of 272 respondents. MANOVA was used to examine the direct effects and interactions of the three COO components, as well as ethnocentrism, measured using the CETSCALE.

Findings – It was found that the three COO sub-components did not influence young Chinese consumers’ evaluation of product quality or purchase intentions. In addition, consumers’ level of ethnocentrism also did not have a direct effect on perceived product quality or purchase intentions. There was only one statistically significant interaction effect between ethnocentrism and country of parts for one of the two products. As such, COO dimensions and young Chinese consumers’ ethnocentrism appears to have limited influence on their assessments of product quality or purchase intentions. This may occur because young Chinese consumers perceive that hybrid products are the norm for high involvement products in China as these products are all these consumers have experienced.

Originality/value – The findings of this research dispute the commonly held belief and evidence that sub-components of COO have an impact on the perceptions of product quality and purchase intentions. Young Chinese consumers may be different to consumers from western countries because they have been extensively exposed to hybrid products. Given the size and growth potential of China, young Chinese are an important, under-researched segment within the Chinese market.

The impact of under-estimated length of jobs on EASY-backfill scheduling

The issue of under-estimated length of jobs (parallel applications) on backfill-based scheduling is ignored in the current literature because users want to avoid their jobs to be killed when the requested time expires. Therefore, users prefer to over-estimate the length of their jobs. This paper shows the impact of underestimated length of jobs on their execution performance in an EASY-backfill scheduling-based system. We have developed a batch job scheduler for Linux clusters that implements an enhanced EASY- backfilling algorithm in such a way that a job with an under-estimated execution time would not be killed unless it would delay other jobs. We have carried out performance evaluation by scheduling static workloads of well known MPI parallel applications on a real cluster. Our results show that most of the jobs do not have to be aborted even though their job lengths are under-estimated whereas the slowdown of jobs and the throughput of the system are only slightly degraded.