|Author:||Law, Shui-yin Jane|
|Title:||Data conversion, updating and integration of lis data in a CAD system|
Information storage and retrieval systems -- Geography
Geographic information systems
Hong Kong Polytechnic -- Dissertations
|Department:||Department of Land Surveying and Geo-Informatics|
|Pages:||1 v. (various pagings) : ill. ; 30 cm|
|Abstract:||With the establishment of Land Information System (LIS) worldwide, digital map is increasingly superseding paper map because of the flexibility evolved. There is a growing concern for the use of digital map in Hong Kong for different applications. The aim to use the digital map in setting up own databases or information system leads to the fundamental problem of data conversion between Geographical Information Systems (GIS). Furthermore, with user's requirement in adding his own data onto the map base to form his own information system, the problems of data updating and integration arise. The magnitude of data integration problem when using digital map depends on the data compatibility of the user's system with the digital mapping system usually owns by the Government. The user's system can be of any hardware and software configuration which can run with graphics and attributes for GIS applications. For instance, it can be a GIS package or a CAD package linked to a database. After data conversion, user needs to integrate the LIS data with their own data. The digital map base must be updated to the user's requirements before their data can be incorporated with the map base for user's applications. This is usually required because each user will have its own survey or data specification, which is, in general, not the same as the specification of the digital map base obtained. This project explores the above concerns of data conversion, updating and integration in same or different GIS or CAD systems for GIS applications in Hong Kong, from a user point of view, while adding the user's features in setting up his own information system using the updated map base. Both the technical and administrative issues relating to the use and development of digital land information will be tackled as we go along for a centralised spatial information system with the increasing set up of Geographical Information Systems in Hong Kong.|
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