| 摘要 |
A system and method for providing a virtual map database, referred to herein as the "Virtual Database System" (VDB). The VDB allows integration of map data, often from various sources, in a consistent manner for supply to an end user, while simultaneously ensuring that the entity best able to support a particular data source retains control over the data. In accordance with an embodiment, the VDB environment enables third-party data providers to associate their third-party-files with a base map or file-of-reference, thereby allowing for the creation of dynamic relationships between digital map features and other third-party data providers. The integration may be performed in a dynamic or real-time fashion, receiving up-to-date information from the various sources, creating links, and composing virtual maps, as needed or on-demand. Since the information is linked between the map providers and the various third parties, whenever an item of information or a link between items is updated in either the file-of-reference or in one of the third-party files, that updated information can be propagated back to all of the third-parties for further use in their software applications.
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