André Miede

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We present a framework that we are developing to better solve several critical issues that arise when interactive systems are extended to large displays. These issues include slow reaction times, difficulties with high numbers of concurrent interactions or user inputs, and problems that occur when combining several aspects of visualizations. In part, these(More)
The past decade has seen an increasing interest in IT outsourcing as it promises companies many economic benefits. In recent years, IT paradigms, such as Software-as-a-Service or Cloud Computing using third-party services, are increasingly adopted. Current studies show that IT security and data privacy are the dominant factors affecting the perceived risk(More)
Companies’ IT Systems are confronted with constantly changing market conditions, new competitive threats and a growing number of legal regulations. The service-oriented architecture (SOA) paradigm provides a promising way to address these challenges at the level of a company’s IT infrastructure. These challenges, as well as the management of the newly(More)
Fluid interaction techniques are increasingly important for effective work on interactive displays such as tabletops. We introduce mobile spatial tools to support such fluid interaction by affecting the properties of objects in the interface spatially rather than temporally. Our tools allow us to control multiple objects simultaneously using high-level,(More)
Resource allocation and resource planning, especially in a SOA and Grid environment, become crucial. Particularly, in an environment with a huge number of workflow consumers requesting a decentralized cross-organizational workflow, performance evaluation and execution-management of service-oriented workflows gain in importance. The need for an effective and(More)
In Service-oriented Architectures, business processes can be realized by composing loosely coupled services. If services in the Internet of Services with comparable functionalities but varying quality levels are available at different costs on service marketplaces, service requesters can decide, which services from which service providers to select. The(More)
With the Internet of Services, Web services from all areas of life and business will be offered to service consumers. Even though Web service technologies make it easy to consume services on arbitrary devices due to their platformindependence, service messaging is heavyweight. This may cause problems if services are invoked using devices with limited(More)