Coming of age : investigating the conception of a census web-mapping service for the Maltese Islands

Abstract

In a society where data creation is expanding exponentially and distribution is spread over an entire planet, the search for tools to improve accessibility and dissemination of data grows more acute. User-friendliness and instant access to reliable data has rapidly become the main issue of concern for researchers and organisations worldwide. This study investigates the use of Web-mapping technology and its impact on Geographical Information Systems (GIS). The study also investigates the diffusion of GIS to the general public through the use of common web browsers or freeware. It researches the feasibility of Web-mapping as a solution to the current lack of accessible data in the Maltese Islands. The study uses the 1995 Population and Housing Census data in the Maltese Islands as a test case to demonstrate the feasibility of the Web-mapping technologies. The project entailed the carrying out of three surveys: first the current Web-mapping situation, second a pre-review questionnaire and third a post-application analysis questionnaire. The purpose of the surveys was mainly to elicit the reviewers opinions on data accessibility and to propose further systems developments. The study was accomplished through an analysis of current websites having Web-mapping functions, mainly the type of technology employed and the level of interactivity with spatial data through on-line maps. Based on the findings, a full-scale dual system Census project was developed giving an opportunity to both GIS professionals and the general public the faculty to access an extensive amount of data either through Imagemaps (interactive on-line maps) or through a GIS-Client system that users can analyse, query and map their requests using a freeware GIS-viewer. Reviewer feedback based on the two developments resulted in the identification of a need to implement the technologies as part of data management and presentation as well as to further develop Web-mapping systems in such areas as environment, transport, planning and the research field. The results indicate a willingness to readily accept on-line GIS as the medium for data distribution, querying and analysis through its integration with current systems both within the organisation under study and in external entities.