A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...
Reading online poses a number of technological challenges. Advances in technology such as touch screens, light-weight high-power computers, and bi-stable displays have periodicall...
Delegation is a mechanism that allows a user A to act on another user B's behalf by making B's access rights available to A. It is well recognized as an important mechani...
: In recent years the fusion of multimedia information from multiple real-time sources and databases has become increasingly important because of its practical significance in many...
Provenance in the context of workflows, both for the data they derive and for their specification, is an essential component to allow for result reproducibility, sharing, and know...