Wednesday, June 6, 2007 - 9:30 AM
182

Web Enabled Geoprocessing

Ken Pathak, Peter H. Besrutschko, David T. Moore, and Greg M. Walker. Information Technology Laboratory, US Army Corps of Engineers, 3909 Halls Ferry Road, Vicksburg, MS 39180-6199

Geospatial applications increasingly require large quantities of data to be collected, assimilated, and integrated with existing and new geographical data.  As a result, various Geoprocessing work units throughout USACE and other federal, state and local agencies are maintaining large data repositories which locally cache geospatial data in disparate formats, resulting in redundant databases which carry high maintenance costs.

Web-enabled geoprocessing allows GIS users to turn to one data source provided by USACE for all GIS data needs, eliminating the need for users to download and maintain the data at the local level.

In a two-pronged approach, the Data Repository retrieves data from specific data sources and holds it in a centralized database in the native format.  The DataNET employs a network-centric approach to streamline and standardize the acquisition, dissemination and management of data across all USACE business areas by using Web Services and a customized ArcGIS toolbar extension, allowing the users to retrieve date directly from external data sources into their existing ArcGIS projects, eliminating the need for preprocessing of the raw data.  Though the Data Repository and DataNet are two different mechanisms being used for data manipulation, the interface is seamless and transparent to the user and applications.


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