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Introduction
Skills and Expertise
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September 1994 - May 2002
October 1987 - December 1993
Publications
Publications (48)
Noch vor wenigen Jahren wurden Fahrzeuge, die selbständig und ohne menschlichen Eingriff am normalen Straßenverkehr teilnehmen können als Visionen einer fernen Zukunft angesehen. Inzwischen reißen die Erfolgsmeldungen und Ankündigungen nicht ab: Google ist mit seinen autonomen Fahrzeugen bereits mehr als eine Millionen Kilometer im Testbetrieb gefa...
Autonomous vehicle technology is maturing rapidly. It may not be long before the first fully autonomous cars operate on public roads. We examine the impact of self-driving car technology on the provisioning of personal mobility and show that the technology has the potential to disrupt the auto industry. The ability to drive without human presence a...
In wenigen Jahren werden die ersten selbstfahrenden Fahrzeuge am Straßenverkehr teilnehmen. Der Fortschritt ist rasant: Immer leistungsfähigere Fahrerassistenzsysteme verdeutlichen das Potenzial dieser Technologie. Erhebliche Fortschritte sind zudem bei der Entwicklung voll autonomer Fahrzeuge zu beobachten, die nicht nur auf der Autobahn sondern a...
The emerging electronic economy is bringing with it rapid advances in open networks and information technology (IT) capabilities, increasing global complexity and interdependence, and increasingly short business cycle times. Many enterprises are reengineering the way they carry out their business to take advantage of these new conditions. In this a...
This chapter is focused on the business economics of open source. From a strategic perspective, open source falls into a category of business models that generate advantages based on customer and user involvement (CUI). While open source has been a novel strategy in the software business, CUI-based strategies have been used elsewhere before. Since...
This chapter is focused on the business economics of open source. From a strategic perspective, open source falls into a category of business models that generate advantages based on customer and user involvement (CUI). While open source has been a novel strategy in the software business, CUI-based strategies have been used elsewhere before. Since...
This chapter is focused on the business economics of open source. From a strategic perspective, open source falls into a category of business models that generate advantages based on customer and user involvement ( CUI). While open source has been a novel strategy in the software business, CUI-based strategies have been used elsewhere before. Since...
Collaborative filtering (CF) is a personalization technology that generates recommendations for users based on others' evaluations. CF is used by numerous e-commerce Web sites for providing personalized recommendations. Although much research has focused on refining collaborative filtering algorithms, little is known about the effects of user and d...
This chapter is focused on the business economics of open source. From a strategic perspective, open source falls into a category of business models that generate advantages based on customer and user involvement (CUI). While open source has been a novel strategy in the software business, CUI-based strategies have been used elsewhere before. Since...
This chapter is focused on the business economics of open source. From a strategic perspective, open source falls into a category of business models that generate advantages based on customer and user involvement ( CUI). While open source has been a novel strategy in the software business, CUI-based strategies have been used elsewhere before. Since...
Although widespread agreement exists that online knowledge infrastructures will eventually replace the traditional modes of paper-based scientific communication, it is not clear what models will be successful and to what extent online infrastructures will differ from the current system. To answer this question two different approaches can be taken:...
Management theory increasingly recognizes the importance of knowledge as an additional production factor besides the classical factors (Gutenberg 1965) of labor, equipment and materials (Grant 1996; Kogut & Zander 1992; Nelson 1991; Drucker 1998). In the transition towards a knowledge based economy, information technology plays a crucial role. Thus...
The previous chapters have shown that significant change is possible for scientific knowledge infrastructures. Nevertheless, many practical obstacles may remain for the evolution of scientific knowledge infrastructures. Current technology lacks maturity; the scientific community may be unwilling to adapt. Moreover, some opportunities for leveraging...
The previous chapter has shown that a wide range of current knowledge infrastructures exists. The infrastructures differ significantly in the way that they represent and manipulate scientific knowledge. Online journals, for example structure knowledge in the form of individual, largely self-contained articles. Encyclopedias, in contrast, focus on t...
The success of the Linux operating system has demonstrated the viability of open-source software, an alternative form of software development that challenges traditional assumptions about software markets. Understanding why developers participate in open-source projects is crucial for assessing the impact of open-source software. Their motivations...
The success of the Linux operating system has demonstrated the viability of open-source software, an alternative form of software development that challenges traditional assumptions about software markets. Understanding why developers participate in open-source projects is crucial for assessing the impact of open-source software. Their motivations...
Software plays an increasingly important role in education. It not only provides the student with the mastery of a tool that he may use in his work life. It also immerses the student very effectively in complex business settings. Therefore, at the Marshall School of Business we are striving to integrate leading-edge technology into high curriculum....
Scientific knowledge is increasingly being stored in online infrastructures such as electronic journals, digital libraries and online encyclopedias. Their designers need to find an adequate approach for representing this knowledge. Unfortunately, most online infrastructures adopt the traditional article-issue-journal model which is based on print t...
The success of the Linux operating system has demonstrated the viability of an alternative form of software development — open source software — that challenges traditional assumptions about software markets. Understanding what drives open source developers to participate in open source projects is crucial for assessing the impact of open source so...
With the increasing cost-effectiveness of communication technologies, online shopping has emerged as one of the most important areas of electronic commerce. A major problem facing online shopping service providers is the heterogeneity of user profile. Unlike organizational systems that have a well-defined universe of users and system boundary, thes...
Software tools for Business Process Reengineering (BPR) promise to reduce cost and improve quality of projects. This paper discusses the contribution of BPR tools in BPR projects and identifies critical factors for their success. A model was built based on previous research on tool success. The analysis of empirical data shows that BPR tools are re...
While much research examines the internet’s impact on ‘electronic business’ information technology may have an equally profound impact on what might be called ‘electronic science’. Although the internet has the potential of revolutionizing research, it is not clear in which ways the structure of journals and the associated research processes will b...
The number of business process reengineering projects in industry and the number of persons involved in such projects has risen rapidly since Hammer and Champy introduced the concept in 1993. As substantial costs are associated with reengineering projects, much effort has been concentrated in developing tools to support BPR projects. In the last th...
Although data modeling has been an area of intensive research, there is a lack of operational procedures for measuring model quality and for integrating large-scale models. Progress has been limited because the meaning associated with the individual elements of a model needs to be taken into account. This meaning rarely is made explicit and therefo...
Although the potential impacts of virtual communities have been widely recognized in business and academia, little research has been done to provide guidelines for design of such communities and to improve the understanding of critical events and interaction patterns that arise during their evolution. This paper reports the results of two years of...
Die Nutzung von Referenzdatenmodellen erfolgt durch die Überführung eines Referenzdatenmodells in ein unternehmensspezifisches Datenmodell. Dieser Prozeß wird als Anpassung des Referenzdatenmodells bezeichnet.
Ziel dieses Kapitels ist es, festzulegen, in welcher Form Referenzdatenmodelle in einer Bibliothek abgelegt werden können. Dabei ergeben sich zwei Grundprobleme. Zum einen muß entschieden werden, welcher Ansatz zur Wissensrepräsentation am besten für die Ablage von Referenzdatenmodellen geeignet ist. Dadurch wird das Meta-Meta-Modell für Referenzda...
Sollte Software ein Modell des Anwendungsbereiches, in dem sie eingesetzt wird, beinhalten? Wie müßte dieses Modell beschaffen sein, um optimale Anwendungen zu erzielen? Über die erste Frage ließe sich heute schnell Einigkeit erzielen, wenn man sie darauf einschränkte, daß ein Modell eines Anwendungsbereiches zumindest für den Entwurf von Software...
Die Wettbewerbsfähigkeit eines Unternehmens wird wesentlich von der Verfügbarkeit von Information bestimmt. Computergestützte Datenbanken mit Informationen über Kunden, Märkte und Konkurrenten steigern zunehmend die Reaktionsfähigkeit von Unternehmen, erhöhen ihre Entscheidungssicherheit und ermöglichen die gezielte Ausrichtung ihrer Leistungen auf...
Auf dem Weg ins Informationszeitalter verändert sich nicht nur der Stellenwert des Wissens im Wirtschaftsprozeß; auch die Prozesse der Erstellung, Verarbeitung und Nutzung des Wissens müssen neu definiert werden.
Unternehmen sind komplexe Informationssysteme, deren Effizienz in hohem Maß von der Art der verarbeiteten Information und von der Organisation der damit verbundenen Kommunikationsprozesse abhängt. Gegenstand der Informationsmodellierung ist die systematische, strukturierte Beschreibung von Informationssystemen, mit deren Hilfe bestehende Informatio...
Zugl.: Saarbrücken, Univ., Diss., 1993.
Data modeling has been valuable for database design. Much research has focused on improving the expressive capabilities of data models, on clustering, and on schema integration. Data modeling techniques have become an integral part of software engineering methodologies and have strongly influenced methods for object-oriented analysis and design. Co...
Data is the main factor for integrating existing and newly developed applications into a homogeneous information system. An
architecture for information systems is presented and the importance of data modelling discussed. Subsequently a data modelling
approach using reference models is presented and steps for the adaption of the reference models ex...
The implementation independent description of the facts relevant for an enterprise will become the foundation for the design of information systems. Deficits of current approaches for their design are monitored and technological development which support the trend towards conceptual modeling are described. As basis for conceptual modeling an inform...
Current applications for production planning and control (PPC) lack adequate support for shop-floor control functionalities. In an environment of changing markets and fierce competition this becomes increasingly disturbant as demands for short delivery times, low batch sizes in production down to a batch size of one, holding of promised delivery da...
The West German Minister for Research and Technology founded the promotion program “Production Technology 1988 – 1992” to promote the implementation of CIM solutions in West Germany. From this program industrial enterprises, primarily from mechanical engineering and plant engineering and construction, can obtain financial help in creating and imple...
Die Wettbewerbsfähigkeit mittelständischer Unternehmen hängt entscheidend von dem strategischen Einsatz der Informationstechnologie ab. Obwohl die Investitionen in diesem Bereich sehr hoch sind — 1988 wurden in der Bundesrepublik ca. 36 Mrd. DM für die EDV ausgegeben[1] — fliessen sie hauptsächtlich in Insellösungen. Dadurch wird die Produktivität...
Despite apparent enthusiasm the implementation of complete CIM systems is still far from being state of the art in world industry. Advances in technology have led to widespread use of information technology in manufacturing but have mainly generated islands of automation. Figure 1 illustrates the current situation in industry. The organizational an...
Traditional business models for software development are currently being challenged by the phenomenon of open source software where communities of programmers leverage the Internet to develop free software without receiving any direct compensation. To understand the success and the prospects of open source software it is necessary to examine the mo...
