Computer-aided design decision support: interfacing knowledge and information

Computer-aided design decision support has proved to be an elusive and intangible project for many researchers as they seek to encapsulate information and knowledge-based systems as useful multifunctional data structures. Definitions of ‘knowledge', ‘information', ‘facts', and ‘data' become semantic footballs in the struggle to identify what designers actually do, and what level of support would suit them best, and how that support might be offered. The Construction Primer is a database-drivable interactive multimedia environment that provides readily updated access to many levels of information aimed to suit students and practitioners alike. This is hardly a novelty in itself. The innovative interface and metadata structures, however, combine with the willingness of national building control legislators, standards authorities, materials producers, building research organisations, and specification services to make the Construction Primer a versatile design decision support vehicle. It is both compatible with most working methodologies while remaining reasonably future-proof. This paper describes the structure of the project and highlights the importance of sound planning and strict adhesion to library-standard metadata protocols as a means to avoid the support becoming too specific or too paradigmatic.

Longitudinal study of computer usage in flexible engineering education

A longitudinal analysis of computer usage by commencing students in Deakin University's undergraduate engineering and technology programs over the period 1998 to 2001 revealed that; access to computers was at high levels; mean computer usage for off campus students had not changed significantly, but had risen significantly for on campus students; while access to the Internet / WWW had not increased significantly, reported regular use of the Internet / WWW had risen significantly; while most students continued to report their source of Internet / WWW access as either home or university, the proportion reporting home as their source of access had risen significantly; and the reported regular use of email rose significantly. Other results are also presented.

These results imply that commencing engineering and technology students are well placed to adopt online delivery and support of teaching and learning. However, while it might now be reasonable to assume that all students have access to computers and the Internet, the experiences of on campus students in computer laboratories with broadband network access will be different from off campus students accessing the Internet via a dialup modem connection. A small proportion of commencing students were unaware of the computing facilities provided by the university; an orientation program covering computing facilities and services would benefit all commencing students.

Computer and IT skills of Australian first-year university undergraduate students

The use of computers and information technology is becoming more widespread in chemical education and in the wider community and workforce. Universities are increasing the use of computers and information technology in their teaching and learning programs. The Australian situation, reported here, can be viewed as a microcosm, reflecting a world-wide trend.

The penetration of general IT literacy and ability amongst Australian undergraduate students is rising rapidly. This paper reports surveys of the detailed IT skills of Australian undergraduate students. To the best of our knowledge, apart from our own work, there have been no other published surveys of specific IT skills. Most students have some reasonable computer skills at the start of their university studies, but the level of skill is not uniformly high. In fact, many IT literate students lack a sufficient level of skill to use the new technologies, including full use of web-based flexible learning. There is an urgent need for IT training for university students in order to achieve successful learning outcomes using IT and to satisfy the needs of future employers.

This article, which is the second in a series (1) of investigations on the computer skills of undergraduate students at the start of university, is an expanded version of a paper presented at the World Chemistry Congress held in Brisbane (Australia) during 1-6 July 2001.

A comparative study of some computer algebra packages which determine the lie point symmetries of differential equations

The study seeks to determine which of five computer algebra packages is best at finding the Lie point symmetries of systems of partial differential equations with minimal user intervention. The chosen packages are LIEPDE and DIMSYM for REDUCE, LIE and BIGLIE for MUMATH, DESOLV for MAPLE, and MATHLIE for MATHEMATICA. A series of systems of partial differential equations are used in the study. The paper concludes that while all of the computer packages are useful, DESOLV appears to be the most successful system at determining the complete set of Lie point symmetries of systems of partial differential equations.

The Digital Divide: Differences in Computer Use between Home and School in Low Socio-economic Households

This article examines information and communication technologies(ICTs) practices in the home and school settings of four disadvantaged families. It reports the findings of a year-long study that investigated the nexus between computer-mediated literacy practices at home and at school and whether this inter-connectivity could make a difference in school success. The findings indicate that there was disjunction between home and school use. The ``digital divide'' exists for the families of this study, not in terms of access but in the gap between ICT practices at home and school. Schools in this study did not integrate ICT skills learned and demonstratedin the home environment into ICT practices at school. The study concludes that constructing pedagogical connections between home and school ICT practices may begin to bridge the ``digital divide''.

Learning through computer-mediated communication: a comparison of Australian and Chinese heritage students

Twelve Australian and 12 Chinese heritage students from a third-year university computer ethics subject completed a Readiness for Online Learning Questionnaire; and six students from each of these two groups participated in a student-facilitated problem-solving discussion through computer-mediated communication. The questionnaire comparisons showed that the two groups of students were equally willing to self-manage their own learning, but that Australian students were significantly more comfortable with e-learning. The analysis of student postings in the CMC component showed that, collectively, Australian students posted more messages than did the Chinese students. Both groups participated equally in socialisation online; although Chinese heritage students posted a higher number of messages associated with organisational matters; and Australian students posted a larger number of message components associated with intellectual contributions to the discussion. These results are interpreted in a theoretical context and implications for practice are drawn.

Does the use of computer assisted learning packages improve performance in accounting?

This study examines the factors affecting student performance in an undergraduate financial accounting course, utilising Computer Assisted Learning (CAL). Multiple regression analysis on student performance shows that positive perceptions of the usefulness of CAL significantly influenced performance. It was also found that International students had significantly poorer performance than local students. This result may be attributed to transitional problems experienced by these students, given their different pathways to university study Prior studies of accounting and computing at secondary school level, together with gender, were not significant influences on performance. The results have implications for accounting educators utilising CAL in courses as a means of improving students understanding of accounting concepts and as a means of providing efficient and effective educational instruction to maximise learning outcomes in accounting.

Construction of gender in computer magazine advertisements : confronting the literature

Previous studies (Sofia, 1998; 2002; Turner & Hovenden, 1997; Weinstein, 1998) discussed the power relations surrounding the advertisements for computers in computing magazines, in particular deconstructing the imagery and text which manifested the dominant digital discourse of power (Millar, 1998). In these studies, the authors found that women were positioned as incapable and impotent users of computers.  The authors examined a number of New Zealand and Australian home computing magazines published in 2003 and 2004, looking for evidence of the gendered nature of technology or examples of any form which would constitute discrimination against women or other identity categories. The purpose of this research was to determine whether previous arguments were still relevant and current, or whether advertisements had changed to accommodate populist understandings of gender and cultural equity, or reflect improved power relations between the sexes. In this paper we have explored the findings of a study, which, although small in scale, raises larger questions concerning the 'new' ways in which issues of gender influence advertising focused on computers. Whilst there has been a significant reduction in overtly sexist texts, hegemonic understandings of masculinity and femininity nevertheless continue to structure mainstream advertisements with women routinely positioned in passive, non-expert or very limited kinds of roles. The extent to which this imagery reflects broader social patterns regarding the re-emergence of traditional portrayals of women and men in the media more generally will be the subject of future studies.

Legal LEGO: Model based computer assisted teaching in evidence courses

This paper describes the development of a new approach to the use of ICT for the teaching of courses in the interpretation and evaluation of evidence. It is based on ideas developed for the teaching of science to school children, in particular the importance of models and qualitative reasoning skills. In the first part, we make an analysis of the basis of current research into “evidence scholarship” and the demands such a system would have to meet. In the second part, we introduce the details of such a system that we developed initially to assist police in the interpretation of evidence.

The impact of computer-assisted learning on academic grades: an assessment of students' perceptions

This study examines student perceptions of the usefulness of Computer-Assisted Learning (CAL) packages in learning accounting concepts in terms of the influence on academic performance. Various additional factors  affecting academic performance [such as gender, prior studies of  accounting, and computer systems, together with entry background] are incorporated in the development of a multiple regression model, together with perceptions of CAL. The study uses a sample of 280 second-year undergraduate accounting students from an Australian university to test the model. In contrast to prior studies (e.g. Lane and Porch, 2002, Accounting Education: an international journal, 11(3), pp. 217-233), this study showed that positive perceptions of the usefulness of CAL significantly influenced performance. Additionally, it was found that international students, many of whom enter university at the second year level having obtained advanced standing credits, had significantly poorer performance than local students. The findings show that gender, prior studies of accounting and computing systems were not significant influences on academic performance. Overall, the results have implications for accounting educators utilising CAL in courses as a means of improving students' understanding of accounting concepts and academic performance.