Editing and versioning dynamic network models

Authors:
Petko Bakalov;Erik Hoel;Wee-Liang Heng;Vassilis J. Tsotras
Affiliations:
Environmental Systems Research Institute, Redlands, CA;Environmental Systems Research Institute, Redlands, CA;Environmental Systems Research Institute, Redlands, CA;University of California, Riverside, CA
Venue:
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Year:
2008

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Abstract

Network data models are widely used to describe the connectivity between spatial features in GIS architectures. Recent applications demand that such models are editable in multiuser environments. The preferred method to resolve conflicts in GIS systems is the use of multiple versions of the data to encapsulate the modifications generated by the end users. In this demo we present a flexible versioning scheme for network models. Our solution is based on marking "dirty areas" (regions which contain conflicts between multiple versions) and subsequent cleaning of these dirty areas. We have implemented a prototype of this versioning scheme and have used it extensively to support various ESRI applications which utilize network models.