Auctions are an important means for purchasing material in the era of e-commerce. Research on auctions often studies them in isolation. In practice, however, auction agents are pa...
We set out to examine whether current, DRM-based online offerings of music and movies accord with consumers’ current expectations regarding the personal use of copyrighted works...
Continuous change of user requirements has become a constant for geo-information systems. Designing systems that can adapt to such changes requires an appropriate ethodology that ...
This contribution describes a general mixed-integer linear programming model based on a time-indexed formulation covering the relevant features required for the complete supply ch...
—In this paper, we present a UML metamodel-based approach for creating and executing workflow models. The modeling language is introduced through its abstract syntax, and an eval...