Square: A Migration Language for Robust Data Importing

When information systems managed by different organizations are integrated, the different parties often must collaborate to define a migration system that transforms the data from one data model to the other. Such a migration step is a common source of system failures. We present a migration language to define transformation definitions for real...

A 3D data modeling approach for integrated management of below and above ground utility network features

Precise and comprehensive knowledge about 3D urban space, critical infrastructures, and below ground features is required for simulation and analysis in the fields of urban and environmental planning, city administration and disaster management. In order to facilitate these applications, geo-information about functional, semantic, and...