Monday, October 13, 2008

Strengthening the Importance of Geographical Information Systems (GIS) Components in Organisations for a Successful GIS Technology

A key to a successful GIS in organizations

Many GIS organisations or organizations with GIS technology tools are faced with problems in implementing GIS technology at their work place. In most cases, GIS fails because the professionals and managers who allocates resources are simply not aware of what drives GIS technology, and as a result they ignore the core components that leads to a successful GIS implementation.

The term ‘geographical information systems’ describes a technology. It’s a complex technology, and its successful application requires the linking of a number of technologies most of which have been developed independently of the GIS world.
GIS deals not only with technology, but also with the inputs to and the outputs from that
technology, which makes it a field of study. In order to properly use GIS, we need to understand what is involved in making it work successfully. What is involved is not simply technology but the whole context of its use. In summary, this article brings forward the idea that there are complex ramifications to the use of GIS technology.
When justifying GIS nowadays, experts need to strengthen the importance of the GIS components, namely technology, data, organisations, methods and body of ideas. This is because these are the core base of GIS that match the vision and commitment of the administrative and technical levels concerned, which should then be balanced against the technological and organizational investment needed in developing the necessary GIS infrastructure.

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Spatial Database for Spatial Planning

Introducing GIS based E- Plan to Local Authorities
Case study for Dehiwela Mt. Lavinia MC Area

The Information System & GIS Division of the Urban Development Authority has introduced a new concept in the field of GIS based Spatial Planning to its declared Urban Local Authorities, called as E – Plan concept. The main objective of this program is to create and develop an Integrated Geo-Information System to all Urban Local Authorities of Sri Lanka. It will include a digital spatial database and a spatial Information System for their customers as well as stake holders by using GIS, GPS & RS Technology.
The necessary base maps and data layers for this purpose have been prepared by interpreting aerial photographs, chain survey sheets, topographic maps and available digital data, which have been updated with the help of latest available high resolution IKONOS satellite data. Extensive field work conducted to incorporate information regarding detailed urban land use pattern, along with current available amenities and facilities. Thus detail information on Administrative Boundaries, Usage of Buildings, Physical Infrastructures, Road Network and Social Infrastructures have been depicted in terms of MC Boundary and even Ward Boundary. Altogether there would be more than 75 data layers at different scales and apart from that other information were in literature form.
The customized prototype GIS applications were prepared for non-GIS users, especially for Local Authority Staff, General Public and introduced an automated system for Building Planning Approval Process. The new Relational Database Management System was established and parameters for quality checking were introduced. The entire project has been executed by using GIS package. Finally, this system will offer many day-to-day advantages by providing strategically information. Linking information to its location enables Local Authority managers to understand the characteristics of their communities, such as Land use and proposed land uses, special project areas and planning regulations, as well as the smallest details such as the exact location of a manhole, electricity poles and garbage collection places etc. Less paper work, able to arriving alternative solutions by changing various scenarios, automation routing work of the Local Authority, able to produce quality maps, user-friendly interfaces for adding and updating data, possibility of retrieving and sharing data, help to reduce time of processing of development planning applications are some of advantages achieved by this system.
The implementation of such system depends on the commitment of the Management of the Council. If Council could realized the value of spatial information system it will long last, otherwise it may be wastage to the Local Authority.

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Monday, July 28, 2008

Web-based GIS for mapping voting patterns

Web-based GIS for mapping voting patterns at the 2004 Australian federal election

This paper describes a Web-based geographical information system (GIS) for mapping voting patterns, at the 2004 Australian federal election, at the polling booth level. The locations of polling booths are geocoded and linked with national digital datasets, including the 2001 census. The Web-based GIS can generate maps displaying patterns of voting for political parties across polling booths with overlays of data showing the demographic and socio-economic characteristics of populations within the surrounding polling booth catchments. A classification functionality consisting of equal interval, quantile, median-based natural breaks and location quotient may be used in order to generate different map displays. The Web-based GIS has been developed as an information dissemination and analysis tool to not only benchmark voting outcomes but also to visualise relationships between voting patterns and local demographic and socio-economic data.

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GIS software selection

GIS software selection: a multi criteria decision making approach

Building a new GIS project is a major investment. Choosing the right GIS software package is critical to the success and failure of such investment. The problem of selecting the most appropriate GIS software package for a particular GIS project is a multi criteria decision making (MCDM) problem. Solving this problem requires consideration of a comprehensive set of factors and balancing of multiple objectives in determining the suitability of particular software for building a defined GIS application. In this paper a MCDM technique, analytic hierarchy process (AHP), is used to assist system developers to select the most appropriate GIS software for a specific application. An AHP decision model is formulated and applied to a hypothetical case study to examine its feasibility in solving GIS software selection problem. The use of the proposed model indicates that it can be applied to improve the decision making process and to reduce the time taken to select a GIS software.

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Bikin KAYA

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