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In this paper we revisit our earlier proposed domain model based approach to requirements management from a situational method engineering perspective. The approach has originally been developed dedicatedly for a small- and medium-sized enterprise (SME) in the field of control system development. Broadening the perspective by considering situational method engineering helps to generalize the approach...
In the recent years more and more people have begun to edit video files, as technologies are becoming more sophisticated and affordable. Web 2.0 has raised tagging functionality to a growing number of websites such as Flickr and YouTube. However, these services only provide basic video annotation support. In comparison to those well-known services there are many research efforts towards video semantization...
A mobile enterprise can be established in a cellular network by participating mobile hosts, which provide Web services from smart phones, and their clients. Mobile hosts enable seamless integration of user-specific services to the enterprise, by following the Web service interfaces and standards, also on the radio link. Moreover, services provided by the mobile host can be integrated with larger enterprise...
When developing software-based control systems, knowledge and experiences in the relevant domain are of great importance. Small- and medium-sized enterprises (SMEs) that are most active here need to capture requirements under severe time and costs pressures. In previous work we have shown that a domain model based on the requirements formalism i* accelerates the requirements capture. Furthermore,...
Realtime simulation software is required for the rapid and efficient development of complex embedded software systems such as engine controllers, especially to avoid expensive tests with the real hardware. But as any other software, realtime simulation software also needs to be developed and maintained. In this paper, we analyse the special requirements of realtime simulation software in regard to...
Multimedia information systems have been developed into service-ware. With the paradigms of web services, service oriented architectures (SOA), and Web 2.0 widgets, multimedia has become truly ubiquitous. However, interoperability, scalability, reliability and security are arising challenges at mobile multimedia service development. This paper focuses on the analysis, design, development and evaluation...
Advances in mobile communication technologies lead to a coalescence of location-based, multimedia services for user communities. However, easy development and maintenance of device-independent mobile services are still challenging. We have developed a service-oriented framework for mobile multimedia processing based on international standards like MPEG-7. Quality of mobile service experience is constantly...
Since nowadays more and more control systems are realised within software on electronic control units, a conceptual integration of control systems engineering and software engineering must be aimed at. Within this work, we build on a proposal to use the software requirements formalism i* to enable a combined investigation of control systems' and software requirements. While i*'s modelling means have...
Telos is a formal knowledge representation language designed for the development of information systems. It has been successfully applied in many different software development projects. Although the development of control systems also includes software development, it constitutes a completely different application domain. An in-depth analysis of the development process results in a set of key characteristics...
Due to the astonishing development in memory and processing capabilities of hand held devices such as smart phones, it is not a dream anymore to enable mobile devices not only as conventional web service requesters but even as providers. The willingness and enthusiasm of service providers place abundant services at the disposal. But this abundance makes the efficiency of service discovery a critical...
Health and mobility of elderly people is gaining importance in aging societies. New communication-based methods to provide health services with personal health care devices are considered promising elements of first-class medical care services for everybody. To achieve this vision, several technological issues have to be solved: (i) body sensors to monitor vital functions have to be developed; (ii)...
Nowadays various mobile platforms from PDA, smart phones to iPhones can deliver road warriors or trippers much mobile information. However, most mobile applications are lacking the "social intelligence" of real companionship. One reason is that community context and spatiotemporal context information are not well taken into consideration. In this paper we propose an ontology-based context...
Nonaka and his knowledge transformation model SECI revolutionized the thinking about organizations as social learning systems. He introduced technical concepts like hypertext into organizational theory. Now, after 15 years Web 2.0 concepts seem to be an ideal fit with Nonaka's SECI approach opening new doors for more personal, dynamic, and social learning on a global scale. In this paper, we present...
This paper describes the design and implementation of a coordination mechanism to support follow up of decisions made in meetings, using task management and semi-structured messages in an integrated way. Two questions lead our research: i) can a set of group support mechanisms, enabling the link between pre-meeting, meeting and post-meeting activities, allow for better coordination of decisions being...
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