Infrastructure Engineering - Research Publications
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ItemThe role [of] cadastral data modelling in e-land administration(Centre of Geo-Information Technologies (cGIT), 2005)Enablement of land administration with Information and Communication Technology (ICT) is heading toward e-Land Administration (e-LA): the transformation of land administration through the use of ICT. Existing initiatives include providing land information on line, electronic conveyancing, digital lodgement of survey plans, and online access to survey plan information. Thus far, implementation of these initiatives is isolated in their specific subsystems without reference to the broader land administration system or its core policy function of supporting sustainable development. One solution to isolation is to develop effective communication among the different land administration subsystems by harmonising data and functionalities, so they are capable of being used by all subsystems. The key to harmonisation is data modelling which both recognizes and reengineers existing business processes. Modelling allows every single process in land administration to influence the cadastral data model and vice versa. This paper describes the importance of cadastral data modelling in data management as well as coordination among subsystems in an e-LA.
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ItemToward e-land administration : Australian online land information services( 2005)Sustainable development (SD) is accepted as a central driver in countries world wide with land administration playing an important role in delivering SD objectives. Within this context the emerging use of the Internet and other information and communication technologies (ICT) are increasingly being utilised by land administration organizations. These technologies provide opportunities for better service delivery and customer satisfaction and a reduction in operating costs. However establishment of these systems as part of e-land administration and in the context of e-government has to date not been fully realised and is often problematic.E-land administration includes the coordination among various parts of land administration businesses including front office operations like online customer services and private partnership services, and also back office operations like internal work flow and central data base management. The first step in improving the current systems within a particular jurisdiction is assessing the current performance of online land information services as part of e-land administration.There are various initiatives to deliver land related information over the Internet for the public in the different Australian states. Analysing these experiences and determining good practice will assist in proposing effective and innovative solutions to improve or re-engineer the existing services as a key infrastructure for implementing e-land administration services.This paper first introduces and discusses various quality of service criteria for the assessment of an online land information system. The criteria include popularity, performance, functionality and user requirements of services. The paper then reviews and presents current land administration services in Australian states including a statistical analysis to better understand the advantages and deficiencies of current services. The results are assessed and suggestions are proposed for improving on
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ItemTowards e-Land administration: electronic plans of subdivisions in Victoria(Surveying and Spatial Sciences Institute, 2009)The Internet and web technologies are now thoroughly integrated into the business of the cadastre, with initiatives like VOTS, LASSI, SMES, LANDATA and SPEAR completed or well underway in Victoria. These technologies provide great opportunities for better service delivery, more customer satisfaction and reductions in operating costs through integrated electronic land administration. With this systematic introduction of the Internet and web technologies into the business of the cadastre, electronic lodgement of plans of subdivisions (ePlan) are about to introduce a new era to the surveying industry by providing an infrastructure for the digital lodgement, exchange, alteration, examination and approval of plans of subdivisions and their associated documents and data in this State. A number of components are needed to be established and a number of current systems are needed to be re-engineered through the ePlan project implementation. This article introduces the Victorian ePlan initiative and outlines the technical component of the system. The ePlan initiative will bring significant benefits to the surveying profession, land development industry, local councils, State Government agencies and instrumentalities and other key stakeholders involved in the land development process by optimising the current practices of submitting plans of subdivision in Victoria, both paper-based and PDF-based plans, by making them fully electronic. Finally, the article discusses that the electronic plan of subdivision is not an end by itself; rather it is a means that facilitates achieving a number of goals remarkably authoritative cadastral database, standardised data exchange between user and databases and electronic land development process.
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ItemAutomatic spatial metadata enrichment: reducing metadata creation burden through spatial folksonomies(Leuven University Press, 2010)Metadata plays a key role in facilitating access to up-to-date spatial information and contributes to the finding and delivering of high quality spatial information services to users. In particular, metadata is an important element in functioning and facilitating spatial data infrastructure (SDI) initiatives. With huge amount of spatial information being generated, a spatial application must be sufficiently flexible to extract and update spatial metadata automatically. Automatic spatial metadata generation framework includes three fundamental but complementary streams; automatic creation, automatic update and automatic enrichment of spatial metadata. This paper explores the automatic metadata enrichment stream based on the tagging and folksonomy concepts. The paper argues how folksonomies help bringing the vocabulary of spatial data users into play and using them hand in hand with those sometimes mysterious terms supplied by experts in metadata records. The paper then builds on the tagging and folksonomy concepts and proposes a conceptual model to employ them for spatial metadata enrichment. The paper finally discusses advantages and disadvantages of this approach against formal type of organizing spatial metadata.
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ItemExploring the key areas of spatial metadata automation research in Australia(Leuven University Press, 2010)Improving the spatial metadata management process to facilitate data discovery, access and retrieval through an SDI platform has been the goal of a number of organizations at different jurisdictional levels in Australia. A current linkage research project titled “Spatial Metadata Automation” is being conducted at the University of Melbourne in conjunction with some industry partners. This research project aims to explore different approaches for automating spatial metadata so that the process of creating and updating spatial metadata – where feasible – becomes automatic. As part of the project an online questionnaire was designed and distributed within the major organizations dealing with spatial data in Australia to assess the users’ needs regarding metadata automation and also the current status of the activities in metadata creation and updating. This paper presents the results of the assessment process and explores the key areas of spatial metadata automation research in Australia. It also reviews some of the more important initiatives regarding spatial metadata in this country and explains the characteristics and framework of the current research. The paper then discusses the structure of the questionnaire and the results of the responses analysis. Finally, the findings, future needs and research questions are presented.
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ItemNo Preview AvailableCadastral futures: building a new vision for the nature and role of cadastres(FIG Congress 2010, 2010)Over the last thirty years spatial information technologies and sustainability theory drove the creation of new visions, models and roles for the cadastre. Concepts including multi purpose cadastres, Cadastre 2014, and sustainable land administration radically altered understandings of the cadastre and its potential. Many of these concepts continue to be relevant in the contemporary context; however, like all disciplines, cadastral science must continue to look to the future to remain relevant. This paper begins this process and aims to provide preliminary insights into the characteristics and potential role of future cadastres. A qualitative research design based upon an exploratory case study underpins the research. Factors including globalisation, population urbanization, good governance, climate-change response, environmental management, 3D visualization/analysis technologies, wireless sensor networks, standardization, and interoperability are found to be driving developments in the cadastral domain. Consequently, six design elements of future cadastre emerge: Survey-Accurate Cadastres, Object-Oriented Cadastres, 3D/4D Cadastres, Real-Time Cadastres, Global Cadastres, and Organic Cadastres. Together, these elements provide a preliminary vision for the role and nature of future cadastres: the elements can be seen as likely characteristics of future cadastres. Collaborative research, potentially through the FIG framework, would enable further development of these design elements and would assist in defining the nature and role of future cadastral systems.
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ItemNo Preview AvailableAutomatic spatial metadata update: a new approach(FIG Congress 2010 - Facing the Challenges - Building the Capacity, 2010)Spatial metadata is a vital tool for spatial data management, retrieval and distribution. It is also a critical component for any spatial data sharing platform which provides users with information about the purpose, quality, actuality and accuracy of spatial datasets. With the amount of spatial data exchanged through the web environment, the demand for automatic spatial metadata creation and updating to describe such resources is increasing. However, automatic spatial metadata updating is still in its infancy and automatic approaches are being explored by researchers. So far different processes and tools have been developed which generate and update a limited number of spatial metadata elements in different standard schemes automatically, thus a large amount of spatial data elements need to be imported manually. In order to improve this situation, this paper aims at exploring a new synchronisation approach based on XML/GML technologies to automate spatial metadata update process, by which dataset properties are read from the dataset file and written into its metadata file automatically. The paper first discusses the important role of metadata in Spatial Data Infrastructures (SDIs)as an enabling platform and proposes an architecture to manage spatial metadata. It then compares different methods of spatial metadata generation and presents a spatial metadata automation framework. Based on this framework, the paper finally introduces a synchronisation approach to achieve the spatial metadata automatic update.
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ItemNo Preview AvailableA synchronisation approach to automate spatial metadata updating(Centre of Geo-Information Technologies, 2010)This paper presents a new approach to automate spatial metadata updating process, by which dataset properties are read from the dataset fi le and written into its metadata fi le automatically.