Linked Data makes one central addition to the Semantic Web principles: all entity URIs should be dereferenceable to provide an authoritative RDF representation. URIs in a linked dataset can be partitioned into the exported URIs for which the dataset is authoritative versus the imported URIs the dataset is linking against. This partitioning has an impact on integrity constraints, as a Closed Wor...

School nurses and health office employees are the creators and caretakers of legal documentation. School nurses have an ethical and legal obligation to protect the integrity of electronic student health records. Although there are many threats to data integrity, from inadequate hardware to electrical surges, one of the most pervasive threats to data is computer viruses. There are many precautio...

When data from several source schemata are to be integrated, it is essential that the resulting data in the global schema be consistent. This problem has been studied extensively for the monogranular case, in which all domains are flat. However, data involving spatial and/or temporal attributes are often represented at different levels of granularity in different source schemata. In this work, ...