Adaptive hierarchical scheduling policy for enterprise grid computing systems

In an enterprise grid computing environments, users have access to multiple resources that may be distributed geographically. Thus, resource allocation and scheduling is a fundamental issue in achieving high performance on enterprise grid computing. Most of current job scheduling systems for enterprise grid computing provide batch queuing support and focused solely on the allocation of processors to jobs. However, since I/O is also a critical resource for many jobs, the allocation of processor and I/O resources must be coordinated to allow the system to operate most effectively. To this end, we present a hierarchical scheduling policy paying special attention to I/O and service-demands of parallel jobs in homogeneous and heterogeneous systems with background workload. The performance of the proposed scheduling policy is studied under various system and workload parameters through simulation. We also compare performance of the proposed policy with a static space–time sharing policy. The results show that the proposed policy performs substantially better than the static space–time sharing policy.

Toward high growth enterprise

The disproportional impact of high growth firms on economies around the world has made them a natural focus of policy attention in New Zealand. That is what is behind New Zealand's ICT taskforce recommendations in 2003 to grow 100 ICT companies each doing over US$ 100 million sales per year by 2012 (a huge accomplishment for a small economy). Those companies could help New Zealand's foreign exchange earnings and jobs, not to mention improved health care, better resourced schools and tertiary institutions, debt reduction and increased savings, and improved standard of living (ICT Taskforce, 2003).

Community development and enterprise culture : prospects and dilemmas

Community Development as a form of practice promotes empowerment and social justice. Its origins lie in people's collective struggle to be heard, recognised and accorded full citizenship in society. It has developed strategies to achieve social change that challenge dominant ways of thinking, policy and resource allocation in society. 'Enterprise culture has its origins in the individualism and competitiveness of capitalism. These essentially neo-liberalist concepts have been remoulded into a radical political program of change sponsored by the state under the guise of new managerialism, competitive tendering and privatization. This research seeks to examine the interface between community development and enterprise culture as a potential site of tension and contestation through an analysis of discourse. The initial task, therefore, was to elaborate the concept of enterprise culture and examine the ways enterprise culture has been manifested in community development. The focus has been on practitioners committed to community development through a qualitative, empirical approach with a view to discerning their views on the relevance and impact of enterprise culture on their work. Community development provides a useful domain for interrogating the infiltration of the concept of the enterprise culture because of its history of opposition and mobilisation. The research seeks to understand the ways in which the forms of enterprise culture as an essentially cultural project are manifested in practice contexts and to analyse the nature of the response to its various manifestations. As a result, it constitutes more than just a critique of any one of these forms, eg, privatisation, tendering out, managerialism, and instead seeks to investigate the degree to which a cultural shift may be occurring towards notions of greater individualism and away from collective notions of responsibility, obligation and citizenship. The research critically analyses the impact of enterprise culture on Australian social policy through the case study of community development practice. The manifestations of enterprise culture are investigated at various levels, with an emphasis on the responses of practitioners. A related aim is to reveal the range of possible responses to the infiltration of the enterprise culture in terms of values, language and practice into community development. Are new forms of practice emerging or is the field being steadily co-opted by government social and educational policy? Finally, the research should enable some future directions to be identified for the field of community development. The findings represent an initial attempt in an Australian context to establish the degree of influence that enterprise culture has had and/or will have on social policy. Chapter 1 examines the concept of enterprise culture and a background to its impact on community development as a domain of practice. The meaning of enterprise culture and its origins will be examined in Chapter 2. Its influence on Australian social policy is then discussed with particular reference to recent changes in Victoria regarding family services. In Chapter 3, the main features of critical discourse analysis are outlined as a framework for subsequent analysis of the links between discourse and hegemony. The work of Fairclough (1992, 1995) is utilised to highlight the relevance of discourse analysis to an examination of the infiltration of ideas associated with enterprise culture into the domain of community development. Chapter 4 provides an overview of the origins and defining characteristics of community development practice. The diverse beginnings and philosophical underpinnings are discussed and the main features of community development outlined in order to establish meanings attached to key concepts such as empowerment and participation. In Chapter 5, the findings of initial interviews with sixteen community development practitioners are discussed in terms of their perceptions of the impact of enterprise culture on their practice and the organisational culture within which they operate. These initial interviews were conducted in November-December 1996. A primary focus of the interviews was to establish the key words in their lexicon of practice and to provide an opportunity for reflection on the relative influence of discourse and practices associated with enterprise culture. A framework for analysing and making sense of the forms of response to enterprise culture is applied to the responses. Four forms of possible response are proposed and discussed in the context of the data. Follow up interviews were conducted in November-December 1997 and the findings of these interviews are discussed in Chapter 6. A particular emphasis in these interviews was on any changes in the lexicon of practice and indications of a change in the impact of discourse and practices associated with enterprise culture. The forms of response suggested in the framework outlined in Chapter 5 are discussed in the light of any movement in the responses of participants in the study. The implications of the findings are discussed in the context of the framework of responses or forms of embrace of enterprise culture analysed in earlier chapters. Finally, in Chapter 7, the potential for community development as a form of practice to transcend or at least accommodate the impact of enterprise culture through strategic forms of embrace is discussed and possible strategies based on the research that may assist in the development of this response are proposed.

Entrepreneurship : industry policy priorities and entrepreneurial education in Australia

Four fields of national policy - general economic policy, industry policy, education policy and specific research and development policy - are strongly interrelated. Unfortunately, in Australia, policy makers in the four fields have not recognized that the discipline of Entrepreneurship - with its emphasis on managing the innovation process - holds the key to effective co-ordination between the four vital policy areas. The paper argues that innovation strategy, not cost reduction or research expenditure, is the key to developing successful, export-oriented products and world competitiveness. Viable innovation strategy depends on the relationship between government, capital availability, development capital and industrial developers. In turn, this relationship requires a cadre of entrepreneurial business managers educated not in the 'traditional' MBA mainstream but in the discipline of Entrepreneurship, specifically focused on learning the practical skills involved in venture evaluation and management of the innovation process. The paper concludes by describing the philosophy and performance of Swinburne University of Technology's School of Innovation and Enterprise, a school at the forefront of entrepreneurial education in Australia and thus a school with important implications for the nation's industry policy priorities.

Theories of the policy process in health promotion research: a review

The Ottawa Charter laid the ground work for a new research and practice agenda by urging health promoters to advocate for healthy public policies. After more than 20 years, it is now time to reflect on the state of policy research in health promotion and to examine how rigorously theories are applied. The review of the literature was
conducted on 11 peer-reviewed journals. The journals were selected for their solid track record in publishing health promotion articles and by using a set of predefined
inclusion and exclusion criteria. The articles, published between January 1986 and June 2006, were searched using Medline and CINAHL databases. The selected papers feature search terms related to ‘politics’, ‘policy’, ‘advocacy’ and ‘coalition’. We examined the theoretical grounding of each paper and whether it focuses on policy content (e.g. nature, impact, evolution of the policy), policy processes (e.g. advocacy capacity building and strategies) or theoretical/methodological issues in policy analysis. This review demonstrates that policy research in health promotion is still largely an a theoretical enterprise. Out of the 119 articles that were found eligible, 39 did apply to some degree a theoretical framework, of which 21 referred to a theoretical framework from political science. We conclude that the field has yet to acknowledge critical concepts that would help to shed light on the policy process, and that validated rigorous theoretical frameworks to inform research and practice are hardly applied. Recommendations are formulated to improve policy research in health promotion.

Policy-based SQLIA detection and prevention approach for RFID systems

While SQL injection attacks have been plaguing web application systems for years, the possibility of them affecting RFID systems was only identified very recently. However, very little work exists to mitigate this serious security threat to RFID-enabled enterprise systems. In this paper, we propose a policy-based SQLIA detection and prevention method for RFID systems. The proposed technique creates data validation and sanitization policies during content analysis and enforces those policies during runtime monitoring. We tested all possible types of dynamic queries that may be generated in RFID systems with all possible types of attacks that can be mounted on those systems. We present an analysis and evaluation of the proposed approach to demonstrate the effectiveness of the proposed approach in mitigating SQLIA.