945 resultados para Geographical information system


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This paper presents a Web-based information system for promoting the cascading utilisation of construction materials in order to mitigate the increasing environmental pressure by the construction industry. First, this paper points out me weaknesses of current waste material exchange systems. Then, a new approach is introduced to reuse demolished materials, by which the utilisation of demolished materials may be ascertained before the demolition is actually produced.. Information technologies, including web-based intelligent and distributed systems, are applied to actua1ise this approach. Finally, the development and implementation of the system is described in detail.

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Strategy is a political act, and yet that has received very little attention in IS strategy research. The purpose of this paper is to explore the mixes between politics, power and strategy using a case study of implementation of a Student Administration System. This takes Strategic Information Systems out of the realm of the purely socia-technical view of information systems and moves it into a dimension which deals with the real social interactions that occur within organisations as a result of the implementation of a strategy in the form of a Student Administration System. This case study shows the power struggles, primarily by two Senior Executives and the users of the information system. The discourse behind this project was initially to create uniformity across a system therefore enabling more than 30 universities around Australia to move from a diversified system to a centralized system. It was through this resistance and through their positions that the two Senior Executives were able to create the discourse that framed many of the decisions and implementation of the system. There eventually became an acceptance that it was for the social good of the University that the Student Administration System was adopted across the University of Australia.

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Building demolition has been undergoing evolutionary development in its technologies for several decades. In order to achieve a high level of demolition material reuse and recycling, new management approaches are also necessitated, in particular in conjunction with the applications of information technologies. The development of an information system for demolition project management is an impactful strategy to support various demolition activities including waste exchange, demolition visualization, and demolition method selection and evaluation. This paper aims to develop a framework of an integrated information system for building demolition project demolition decision-making and waste minimization. The components of this information system and their interactions are demonstrated through a specifical demolition project.

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Building demolition has been undergoing evolutionary development in its technologies for several decades. In order to achieve a high level of demolition material reuse and recycling, new management approaches are also necessitated. Several information systems are proposed or developed particularly promoting efficient project management, waste minimization and project safety. These information systems include waste exchange, 4D visualization, safety aware schedule, waste product schedule, site atTangement optimization and so on. However, the fragmented information systems applied by various parties involved in the demolition project could generate conflicts due to the lack of communication and standardization. This paper aims to develop a framework of an integrated information system for building demolition projects, which covers the major aspects of innovative management approaches and conventional construction project management perspective. Practically, the system will serve as an information portal for all demolition project team members.

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Examines the attitudes of Australian IS/IT managers to the concept of cyber-vigilantism. Also, it explores the policies and procedures which have been set in place by various organisations to cope with concerted attacks on their systems. It finds that although a majority of managers do approve of the concept of “striking back”, only a minority are prepared for this eventuality. There appears to be complacency about the threats posed by organised, offensive attackers.

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Urban expansion is a principal process threatening biodiversity globally. It is predicted that over half of the world's population will reside in urban centres by 2010. If we are to conserve biodiversity, a shift in perspective from traditional ecological studies based in natural environments, to studies based in less natural environments is paramount. To effectively conserve species which occur in urban environments, comprehensive analysis is necessary to determine the processes that are driving this urban usage. Geographical Information Systems (GIS) technology provides a valuable tool for efficient spatial analysis and predictive mapping of species distributions.

This study used GIS to analyze current breeding sites for the powerful owl, a vulnerable top order predator in urban Melbourne, Australia. GIS analysis suggests that a number of ecological attributes were influencing powerful owl usage of urban environments. Using these ecological attributes, predictive mapping was undertaken, which identified a number of potential breeding sites for powerful owls within urbanized Melbourne.

Urban environments are traditionally perceived as “the wastelands” of natural environments, however, this study demonstrates that they have the potential to support apex predators, an important finding for the management of rare and threatened species.

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Previous research has examined the impact of organizational culture(OC) on the implementation of many information systems. However, there is a lack of overall picture on how OC affects the effectiveness of different information systems differently. Based on the Competing Value Framework, this paper proposes a comprehensive framework to explain how the fit between organizational culture and types of IS results in different types of IS effectiveness. This framework can be used by managers to create a proper organizational culture that is compatible with the use of specific information systems.