From Mapping to Metadata, From Simple to Enterprise Portals? - A one stop solution using portlet technology

Presentation | Presented

  • Hans Plum, lat/lon GmbH

Nowadays, OGC Web Mapping Services are commenly used over the internet via various clients. The ease-of-use and flexibility coming out the OGC standards promoted the growth of interoperability. More and more geo spatial data get published via OGC web services like Web Feature and Web Coverage Services.

Concurrently, the demand for clients serving different OGC web services for different user groups with theirspecific needs get obviously. E.g. the citizens just like to browse the city map and search for addresses whereas employees of the planning department need access to extended search facilities within the metadata repositories or annotating functions. Other departments like the environmental section acquire new geo spatial data and publish it via Web Mapping Services. In order to make the new data findable, they create metadata and publish them via a central catalogue service, so that the planning department can find the new environmental information.

Providing all the functionality to the users within one node, the application has to support user and resource management issues. Based on Apache Jetspeed, an Open Source portal framework, deegree provides portlets - GUI based applications within a portal - for interacting with OGC Web Map and Web Feature Services. Portlets for catalogue-search functionality and an extensive editor for maintaining ISO 19115 and 19119 based metadata were also developed. Depending on the user's profile all needed functionality can be arranged within one application providing a one-stop solution.

Supporting Files