SwERVE is designed for customers who hold unique data within a GIS system and wish to maximise its availability at minimum cost. SwERVE opens data locked within proprietary GIS systems and makes it available to popular desktop GIS applications with no risk of corruption to the source data. In this way, SwERVE forms a dynamic link between the proprietary GIS and the desktop GIS.

SwERVE version 4.1 builds on previous versions to enable the user to maximise usage of their data within an intuitive and easy-to-use environment.

Data Extraction Facility - for extraction of both raster and vector data from a proprietary GIS for integration within a desktop GIS

• Spatial Extracts - enable the user to extract data from the proprietary GIS based on a geographical area selected within the desktop GIS
• Integrated Cache Subsystem - to improve the performance of Spatial Extracts
• Bulk Extracts - fast extraction of large, one-off groups of data from the proprietary GIS e.g. for reporting purposes
• Differential Extracts - ability to extract only data which has changed since a previous extract
• Optional independent extraction of Geographic and Non-Geographic data
• Automatic 'best fit' selection of object attributes and geometries

XML Import Facility - enables the user to load data from other sources into the proprietary GIS

Data Models - automatic creation of Data Models based on the structure of the data held within the proprietary GIS

• Easy-to-use interface allows the user to create and manage Data Models
• SwERVE can be run against any number of proprietary GIS' therefore more than one Data Model may be created
• The co-ordinate system of the Data Model is automatically set to match that of the proprietary GIS

Collections - convenient arrangement of data to be extracted

• Enables the user to efficiently manage data extractions
• Easy-to-use interface for building Collections
• Migration of Collections between Data Models
• For security purposes, the GIS administrator is able to specify which objects the user can and cannot extract

Additional Features

• A unique set of tools is added to the receiving desktop GIS to facilitate viewing of data once extracted from the proprietary GIS
• Specification of layer order for extracted objects within the receiving desktop GIS
• Corporate-wide styles for objects
• Automatic determination of styles
• Display within the desktop GIS of table and field names derived from the proprietary GIS