Abstract
 Managing GIS Application-Schema Relationships Track: Application Development Author(s): Ivan Brown In local governments, many GIS applications retrieve information from datasets by navigating schema. Applications often call on particular datasets and field names within those datasets by name. Changes to schema and data characteristics may foster discontinuity in availability for multiple GIS applications. There are at least four approaches to mitigation for this challenge. First, maintain an inventory of layers and fields that are navigated by applications and the applications that look for those layers and fields. Second, maintain documentation on business needs, application functionality, schema relationships, and data characteristics. Third, periodically verify output from applications. Finally, bundle an emergency copy of an application and a copy of the data it needs. Since the application and data coexist, the bundle may be used in case there is a disruption in application-schema synergy. Ivan Brown City of Chesapeake, Virginia Information Technology 300 Shea Dr Chesapeake , VA 23322 US Phone: 703-382-8846 E-mail: JIBrown@dit.city.chesapeake.va.us |
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