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GeoInformatics-7-2009
article geodan s map portal geoserver.nl/uk always the most up-to-date data geodan s map portal geoserver.nl/uk is an example of a service oriented architecture (soa). with one subscription, desktop and webgis users receive various map backgrounds, a geocoding service and a routing service. among the users there are web developers, brokers, real estate agencies, consultancy firms, housing corporations and banks. by monique husslage world. these services are based on microsoft s mappoint. it is also possible to have user-specific map layers or services developed and/or hosted at geoserver.uk. pay per view geoserver.nl/uk is an online service based on a pay-per-view model. users choose the type of subscription that best fits their expected use. the larger the subscription (the number of purchased credits), the cheaper it gets. credits that have not been used during the year are rolled over to the next year and the amount of credits adjusted once a year. this means that the subscription is extremely flexible. this comes in particularly handy for setting up new web applications, as it is difficult to predict the numbers of visitors beforehand. one subscription for the entire organisation once you have subscribed to geoserver.nl/uk, you get unlimited access to all services for one or several ip addresses. this way, the entire organisation can take advantage of the subscription, as logging in is required only for viewing statistics. these statistics can be requested by year, month and day. besides, through authorisations, services can be partly screened off. since the introduction of geoserver.nl in 2005, more than 1,000 organisations have registered for geoserver.nl and geoserver.nl/uk, and almost one hundred subscriptions have been taken out. the choice of services is constantly being expanded. thus, the supply of detailed map backgrounds for europe is constantly increasing. geodan is also working on additional functionality for desktop gis users, such as a geocoding tool for europe. vital dent s area of coverage (source: vital dent) specialization is efficiency: providing better products or services at a lower cost. by storing and managing the geographical information of different providers on a sole central location, users no longer have to worry about management, data currency and reliability. this is the principle of service oriented architectures (soas), which are becoming more and more common in the gis world. in reply, the open geospatial consortium (ogc) has developed standards for gis webmapping servers. using this uniform requesting mode, users can easily combine different types of data from different providers within their application. street maps, geocoding and routing geoserver.uk, the international sister of the popular geoserver.nl/uk, offers a streetmap service based on tele atlas multinet. almost all western european countries are available now, and this service will extend in the near future. also a european geocoding and a routing service are both available for the entire project-based consulting firms often work on area-driven projects. this means they have to purchase data for a small area. this is not only a timeconsuming activity; the costs for purchasing datasets of several small areas are relatively high. with one and the same subscription for october/november 2009 20
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