Ontologies play an important role in knowledge representationfor sharing information and collaboratively developing knowledgebases. They are changed, adapted and reused in different applicationsand domains resulting in multiple versions of an ontology. The comparisonof different versions and the...

This paper proposes model-driven techniques to extend IBM’s SOMA method towardsmigrating legacy systems into Service-Oriented Architectures (SOA). The proposal exploreshow graph-based querying and transformation techniques enable the integration oflegacy assets into a new SOA. The presented...

The efficiency of marketing campaigns is a preconditionfor business success. This paper discusses a technique totransfer advertisement content vie Bluetooth technology andcollects market research information at the same time. Conventionaladvertisement media were enhanced by devices...

Dieses Dokument schlägt ein Konzept für eine Personal Key Infrastrukturin iCity vor. Über ein Trust Center (TC) ausgestellte Zertikategewährleisten einen sicheren Schlüsselaustausch mit nachweisbarer Authentisierungdes Kommunikationspartners, Abhörsicherheit sowie Unverfälschtheit und...

Conventional security infrastructures in the Internet cannot be directlyadopted to ambient systems, especially if based on short-range communi-cation channels: Personal, mobile devices are used and the participants arepresent during communication, so privacy protection is a crucial issue....