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PublicationPromoting the Quality of User Generated Ideas in Online Innovation Communities: A Knowledge Collaboration Perspective(Association for Information Systems, 2016-12-11)
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PublicationAbsorption Processes and IT Capabilities in Open Innovation Communities( 2012-12-15)
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PublicationThe Effects of Prediction Market Design and Price Elasticity on Trading Performance of Users : An Experimental Analysis(Cornell University Library, 2012-04-18)
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PublicationUsing the IDEAL Software Process Improvement Model for the Implementation of Automotive SPICE(Conference Publishing Solutions, 2012-06-02)Most suppliers in the automotive industry are facing the challenge of implementing Automotive SPICE, a domain-specific model of ISO/IEC 15504, which was first published in 2005. Original equipment manufacturers have increasingly requested SPICE certifications from their suppliers in order to effectively evaluate the development processes and identify reliable partners. To support organizations in their software process improvement effort, the Software Engineering Institute (SEI) developed the IDEAL model. This guide is, however, influenced by the SEI's work on CMM and based on the experiences with very large organizations. The goal of this paper is to examine the suitability of the IDEAL model for the implementation of Automotive SPICE at a medium-sized R&D department. Preliminary results from an action research study at a global systems engineering company are discussed. The data indicate that adjustments are especially needed with regard to the factors participation and communication. Also, informal networks between companies, early decision-making and usability are shown to play an important role and might be added to the model.
Scopus© Citations 3 -
PublicationMarket Engineering for Electronic Health Services(IEEE, 2012-01-04)Various studies have proven the positive impact of ehealth solutions on treatment success and health care spending. Utilization of e-health is therefore urgently recommended by German health authorities. However, the diffusion of such technologies is currently very low, despite the availability of the underlying technology. A market failure is a likely reason for the unsatisfying situation, as there are currently hardly regular business models for electronic health services. This paper conducts a case study on telemonitoring, which has significant positive impact on patients with chronic heart failure, to illustrate a market engineering approach for e-health applications. The introduced case study is located in a southern German region, where health insurances and a physician network want to establish a telemonitoring solution. We investigate the socioeconomic, technical and legal environment in order to derive a transaction object and build a transaction service. Patients will transfer vital parameters to physicians on a daily base. Caregivers observe patients' health status and compile quarterly reports for the e-health provider. The provider distributes the funds of the health insurances according to the compliance among the stakeholders and adjusts the model on an annual base according to the realized savings. The presented solution can be built upon the emerging German infrastructure for telemedicine and be extended to further regions later.
Scopus© Citations 2 -
PublicationCollaboration and the Quality of User Generated Ideas in Online Innovation Communities(Academy of Management, 2012-08-07)
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PublicationTowards an Artifact Model for Requirements to IT-enabled Product Service Systems( 2011-02-16)The development of IT-enabled product service systems (PSS) a combination of physical technological elements (products)and service elements poses various challenges because of their complexity and the involvement of multiple domains. Classical requirements engineering (RE) addresses these problems only insufficiently. This paper proposes an artifact model for the requirements to PSS, which helps in overcoming these problems. The results generated by RE or the development activities are called artifacts. The artifact model defines different types of artifacts and their interrelations. This provides a structure which facilitates the handling of a large number of requirements. The applicability of the presented artifact model is demonstrated in an example where the artifact model is applied to a real-life product. We show that the requirements can be modeled using the artifact model, and that common problems of RE can be avoided in this way.
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PublicationAnalysis of Requirements Engineering Techniques for IT enabled Product-Service-Systems(IEEE Xplore, 2011-08-30)Product service systems (PSS) are introduced by many companies to increase their differentiation and to provide integrated solutions to customers. PSS are integrated solutions consisting of physical products, software and services aiming at providing an individualized solution to a customer's problem. The specific attributes of PSS lead to specific requirements for requirements engineering (RE). The goal of this paper is to analyze to which degree the analysis techniques of software engineering are suitable for PSS. We therefore conducted a structured literature review of software engineering techniques. The criteria for assessing the suitability of the techniques were based on the characteristics of PSS and the task of RE in the development process of PSS. We analyzed five textbooks and 144 scientific articles and identified 27 groups of techniques. The result is that there are major gaps in techniques for RE for PSS. Two of ten criteria are not satisfied by any technique. Moreover, for the majority of tasks of RE multiple techniques have to be combined for satisfying the criteria. In summary, the literature review shows that the techniques of software engineering are largely not directly applicable to PSS.
Scopus© Citations 5 -
PublicationTowards Cycle-Oriented Requirements Engineering( 2011-02-16)Product Service Systems (PSS) – a combination of software, hardware and service elements – are an emerging trend on the market. Their development encounters different difficulties, amongst them the existence of dynamic cyclic interdependencies. These cycles make the challenging requirements engineering (RE) for PSS even more complicated. Up to now there is no integrated RE approach for PSS. An important step in developing such an approach is to understand the effects of cycles on RE. In this paper the cycles and their causes are analyzed by an industrial case study, a literature review, and by expert interviews. The contribution of this paper is twofold. First, a detailed explanation of cycles’ causes emerging in the development and RE of PSS is given and the effects of the resulting cycles on RE are elaborated. Second, a list of requirements to RE for PSS is derived, which describes how the cycles can be managed adequately.
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PublicationWas bringen die aktivsten Teilnehmer in IT-gestützten Ideenwettbewerben? Der Einfluss von Teilnehmer-Aktivität auf Ideengenerierung und Ideenbewertung( 2011-06-16)
