Customer Criteria The HKMap system Design Considerations of the HKMap system Interface.pdf

Touring Hong Kong via WWW Vincent Ng, Stephen Chan, Chak Man Ng, Fergus Tang Presenters: Chan Ka Yeung, Alan Leung Ngan Ming, Ming Today’s Agenda Æ Introduction ÆCustomer Criteria ÆThe HKMap system Æ Design Considerations of the HKMap system Æ Interface of the HKMap system ÆComparison with other GISs ÆConclusions Æ Future Developments Weaknesses Æ Discussion Questions 1 Geographic Information System (GIS) ÆA system of capturing, storing, checking, manipulating, analyzing and displaying data which are spatially referenced to the Earth (Department of Environment, British, 1987) ÆA group of procedures that provide data input storage and retrieval, mapping and spatial analysis for both spatial and attribute data to support the decision making activities in organizations (D. J. Grimshaw, 2000) Common Limitations of GIS through Web ÆStateless interface program ÆUnable to “remember” how a user interacted with the program in the past ÆSimple interactions ÆOnly single point clickings and text data input supported ÆProduce higher network traffic and redundant pages when updating maps 2 Objective ÆTo design a GIS which are able to reduce the amount of data transfer on the network so as to prevent redundancy and inefficiency Customer ÆTourist visiting HK ÆProvide path searching service and information about hotspot/interesting place in HK 3 Customer Criteria Æ Processing time Æ Response time: time interval between sending o