A national information infrastructure model for information warfare defence

Information infrastructures are an eclectic mix of open and closed networks, private and public systems, the Internet, and government, military, and civilian organisations. Significant efforts are required to provide infrastructure protection, increase cooperation between sectors, and identify points of responsibility. The threats to infrastructures are many and various, and are increasing daily: information warfare, hackers, terrorists, criminals, activists, and even competing organisations all pose significant threats that cannot be sufficiently dealt with using the current infrastructure model. We present a National Information Infrastructure model that is based on defence against threats such as information warfare.

Assets in Accounting: Reality Lost

The aim of this paper is to trace changes in the definitional concept of assets in an attempt to discover why professional accounting bodies in the major English speaking countries have adopted the problematic abstract 'future benefit' notion, which is so far removed from the simple concept of assets as exchangeable things or rights. It is suggested that in the future financial reporting requirements for business entities include a statement of 'separably exchangeable property' and legal obligations at the reporting date.

Empirical evidence from the corporate collapse literature suggesting re-examination of accounting standards in relation to valuation of assets

This paper examines the recent spectacular corporate collapses of Parmalat in Europe, Enron and WorldCom in the USA and HIH in Australia and argues for a re-examination of corporate governance regulations, particularly in relation to accounting standards regarding the valuation of assets. The recommendation that is put forward in this regard is based upon empirical evidence arising from further examination of the empirical results in (Hossari and Rahman, 2004). Specifically, the recommendation is based upon the realization that, among the 48 financial ratios across the 50-plus refereed studies, five financial ratios, all of which contained assets as one of the variables, were a relatively robust indicator of corporate collapse. The five ratios are: Net Income/Total Assets, Current Assets/Current Liabilities, Total Liabilities/Total Assets, Working Capital/Total Assets, and Earnings Before Interest and Taxes/Total Assets. This paper suggests that it's not the failure of the corporate collapse prediction models, rather it's the erosion of the reliability of some key input data, namely assets and the valuation thereof, that is largely responsible for the apparent failure of these models in capturing impending collapses, such as those that we witnessed in the recent past. Such empirical findings support the argument that assets are soft targets for misrepresentation, because of the leeway granted in accounting standards with regards to their valuation.

The importance of intangible assets in initial public offerings

This paper follows Beatty and Ritter (1986), who argue that lower uncertainty about the value of an initial public offering (IPO) reduces the 'need' for the underpricing of an IPo. Australian IPOs often identify the existence of intangible assets such as goodwill, licenses, brand names, trademarks, patents and capitalized research and development costs in the prospectus. This paper analyses if IPOs identifying the existence of such intangible assets in the prospectus might reduce uncertainty about their valuation and hence allow a lower underpricing return. While the reporting of intangible assets such as goodwill and license costs in the prospectus are not significant ingredients in the level of underpricing, the identification and valuation of intangible assets such as brand names, trademarks, patents and capitalized research and development costs is significant in reducing the level of underpricing return. Our findings are also consistent with previous studies concluding that both the size of the new issue and the use of an underwriter are important in the level of underpricing return.

Robust parallel job scheduling infrastructure for service-oriented grid computing systems

Recent trends in grid computing development is moving towards a service-oriented architecture. With the momentum gaining for the service-oriented grid computing systems, the issue of deploying support for integrated scheduling and fault-tolerant approaches becomes paramount importance. To this end, we propose a scalable framework that loosely couples the dynamic job scheduling approach with the hybrid replications approach to schedule jobs efficiently while at the same time providing fault-tolerance. The novelty of the proposed framework is that it uses passive replication approach under high system load and active replication approach under low system loads. The switch between these two replication methods is also done dynamically and transparently.

Safeguard information infrastructure against DDoS attacks: experiments and modeling

Nowadays Distributed Denial of Service (DDoS) attacks have made one of the most serious threats to the information infrastructure. In this paper we firstly present a new filtering approach, Mark-Aided Distributed Filtering (MADF), which is to find the network anomalies by using a back-propagation neural network, deploy the defense system at distributed routers, identify and filtering the attack packets before they can reach the victim; and secondly propose an analytical model for the interactions between DDoS attack party and defense party, which allows us to have a deep insight of the interactions between the attack and defense parties. According to the experimental results, we find that MADF can detect and filter DDoS attack packets with high sensitivity and accuracy, thus provide high legitimate traffic throughput and low attack traffic throughput. Through the comparison between experiments and numerical results, we also demonstrate the validity of the analytical model that can precisely estimate the effectiveness of a DDoS defense system before it encounters different attacks.

Grid accounting service infrastructure for service-oriented grid computing systems

In this paper, we propose an architecture of accounting and payment services for service-oriented grid computing systems. The proposed accounting and payment services provide the mechanisms for service providers to be paid for authorized use of their resources. It supports the recording of usage data, secure storage of that data, analysis of that data for purposes of billing and so forth. It allows a variety of payment methods, it is scalable, secure, convenient, and reduce the overall cost of payment processing while taking into account requirements of Grid computing systems.

Intangible assets and the underpricing of industrial company initial public offerings

This study analyses 262 industrial company initial public offerings (IPOs) in Australia from 1994 to 1999. It finds that the identification and valuation of brand name, trademark, patent and capitalized research and development cost intangible assets in the prospectus significantly reduces underpricing. The identification of goodwill and license cost intangibles does not appear to be significant to underpricing. This paper supports the Beatty and Ritter (1986) argument that IPOs may display financial and nonfinancial characteristics that lower the uncertainty about the value of the lPO and hence lower the underpricing of that IPO. Our findings suggest implications for the issuer who wants to maximize the value of the firm at the time of the lPO, the underwriter who is required to guarantee the success of the capital raising and for the initial investors who are looking to reduce their uncertainty about the valuation of the lPO.

Security management : modelling critical infrastructure

Secure management of Australia's commercial critical infrastructure presents ongoing challenges to owners and the government. Currently a high-level iriformation sharing collaboration between the government and business manages complex security issues, but critical irifrastructure protection also lacks a scalable model exhibiting the overall structure of critical infrastructure at various levels, sectors and sub-sectors. This research builds on the work of Marasea and Warren (2003) to establish a representative model of Australia's critical irifrastructure; discusses the boundaries between critical infrastructures, and considers the existence andpotential irifluence ofcritical irifrastructure relationships.

Council amalgamations and restructuring in Victoria: how did we value the assets and liabilities?

This study aimed to identify and critically analyse the methodologies and accounting treatments adopted in the transfer of assets, liabilities, revenues and expenses resultingfrom municipal boundary changes associated with municipal restructuring (amalgamations) in Victoria during the early 1990s. In involved the collection and use of oral evidence obtained from officers of a sample of entities engaged in the process and focused on identifying and examining the methodologies used by municipalities. It has also been shown that local government is different from the commercial domain and the accounting profession has not adequately addressed some of these differences.