TY - JOUR A1 - Strasser, Artur T1 - Delphi Method Variants in Information Systems Research: Taxonomy Development and Application JF - Electronic Journal of Business Research Methods N2 - Delphi is a frequently used research method in the information systems (IS) field. The last fifteen years have seen many variants of the Delphi Method proposed and used in IS research. However, these variants do not seem to be properly derived; while all variants share certain characteristics, their reasoning for differentiation inconsistently varies. It seems that researchers tend to create “new” Delphi Method variants, although the underlying modification of the Delphi Method is, in fact, minor. This leads to a heterogeneity of Delphi Method variants and undermines scientific rigor when using Delphi. The study addresses this deficit and (1) identifies different variants of Delphi and determines their characteristics, (2) critically reflects to what extent a clear distinction between these variants exists, (3) shows the clearly distinguishable Delphi Method variants and their characteristics, (4) develops a proposed taxonomy of Delphi Method variants, and (5) evaluates and applies this taxonomy. The proposed taxonomy helps clearly differentiate Delphi Method variants and enhances methodological rigor when using the Delphi Method. KW - Delphi KW - Delphi method characteristics KW - Delphi method variants KW - Information systems research KW - Taxonomy Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-11648 SN - 1477-7029 VL - 2017 IS - 15(2) SP - 120 EP - 132 ER - TY - JOUR A1 - Clasen, Michael T1 - Zukunftsforschung und strategische Vorausschau für die Landwirtschaft JF - Lecture Notes in Informatics - Proceedings N2 - In diesem Artikel wird die strategische Vorausschau als eine Methode der Zukunftsforschung vorgestellt. Die entwickelten Szenarien können Entscheidern helfen, besser auf zukünftige Entwicklungen vorbereitet zu sein. Die GIL könnte eine Plattform sein, um Trends in der Landwirtschaft und Agrarinformatik zu identifizieren. KW - Futurologie KW - Prognose KW - Trendanalyse KW - Zukunftsforschung KW - Strategische Vorausschau KW - Foresight Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-12007 SN - 1617-5468 VL - 2017 IS - 268 SP - 37 EP - 40 ER - TY - JOUR A1 - Garashchuk, Julia A1 - Clasen, Michael A1 - Theuvsen, Ludwig T1 - Preisdifferenzierung im Lebensmitteleinzelhandel – eine Literaturrecherche JF - Lecture Notes in Informatics - Proceedings N2 - Preisdifferenzierung ist ein altbekanntes Thema und spielt eine wichtige Rolle bei der Preissetzung im Online-Handel. Das Ziel dieses Beitrages ist eine kurze Darstellung der relevanten Literatur zum Thema „Preisdifferenzierung im stationären und Online-Lebensmitteleinzelhandel". KW - Preisdifferenzierung KW - Lebensmitteleinzelhandel KW - Preisbildung KW - Preissetzung Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-12019 SN - 1617-5468 VL - 2017 IS - 268 SP - 49 EP - 52 ER - TY - JOUR A1 - Albrecht, Urs-Vito A1 - Afshar, Kambiz A1 - Illiger, Kristin A1 - Becker, Stefan A1 - Hartz, Tobias A1 - Breil, Bernhard A1 - Wichelhaus, Daniel A1 - von Jan, Ute T1 - Expectancy, usage and acceptance by general practitioners and patients: exploratory results from a study in the German outpatient sector JF - Digital Health N2 - Objective The study’s objective was to assess factors contributing to the use of smart devices by general practitioners (GPs) and patients in the health domain, while specifically addressing the situation in Germany, and to determine whether, and if so, how both groups differ in their perceptions of these technologies. Methods GPs and patients of resident practices in the Hannover region, Germany, were surveyed between April and June 2014. A total of 412 GPs in this region were invited by email to participate via an electronic survey, with 50 GPs actually doing so (response rate 12.1%). For surveying the patients, eight regional resident practices were visited by study personnel (once each). Every second patient arriving there (inclusion criteria: of age, fluent in German) was asked to take part (paper-based questionnaire). One hundred and seventy patients participated; 15 patients who did not give consent were excluded. Results The majority of the participating patients (68.2%, 116/170) and GPs (76%, 38/50) owned mobile devices. Of the patients, 49.9% (57/116) already made health-related use of mobile devices; 95% (36/38) of the participating GPs used them in a professional context. For patients, age (P < 0.001) and education (P < 0.001) were significant factors, but not gender (P > 0.99). For doctors, neither age (P = 0.73), professional experience (P > 0.99) nor gender (P = 0.19) influenced usage rates. For patients, the primary use case was obtaining health (service)-related information. For GPs, interprofessional communication and retrieving information were in the foreground. There was little app-related interaction between both groups. Conclusions GPs and patients use smart mobile devices to serve their specific interests. However, the full potentials of mobile technologies for health purposes are not yet being taken advantage of. Doctors as well as other care providers and the patients should work together on exploring and realising the potential benefits of the technology. KW - mHealth KW - general practitioners KW - acceptance KW - smartphone KW - tablet KW - mobile health KW - digital divide KW - Smart Device KW - Hausarzt KW - Patient KW - Akzeptanz Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-13471 VL - 2017 SP - 1 EP - 22 ER - TY - JOUR A1 - Schirmer, Daniel A1 - Eicke, Chris A1 - Iezzi, Marco A1 - Daum, Andreas A1 - Krause, Manfred T1 - Ein wirtschaftliches Ausgleichssystem für regionale Regelenergie-Leistungen virtueller Biogas-Verbundkraftwerke JF - Lecture Notes in Informatics - Proceedings N2 - Der zukünftig steigende Bedarf an Bereitstellung von Regelenergie aus regenerativen Kraftwerken sowie sinkende EEG-Tarifstrukturen im Bereich Biogas führen zur Notwendigkeit einer Entwicklung alternativer Betriebs- und Vergütungsmodelle. Der vorliegende Beitrag skizziert ein wirtschaftliches Ausgleichssystem für virtuelle Biogas-Verbundkraftwerke. Es beschreibt, welche Kosten und Erlöse in virtuellen Biogas-Verbünden generiert werden, sofern diese teilautomatisiert und auf die regionale Netzstabilität fokussiert betrieben werden. Das wirtschaftliche Ausgleichssystem ist ein Teil des im Forschungsvorhaben VKV Netz zu entwickelnden Steuerungssystems für virtuelle Biogas-Verbundkraftwerke (http://vkvnetz.de). KW - Automation KW - Erneuerbare Energien KW - Reserveleistung KW - Wirtschaftlichkeit KW - Biogas KW - Regelenergie Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-11984 SN - 1617-5468 VL - 2017 IS - 268 SP - 133 EP - 136 ER - TY - JOUR A1 - Gubanova, Anna A1 - Clasen, Michael A1 - Theuvsen, Ludwig T1 - How do digital agricultural startups achieve critical mass? A qualitative analysis JF - Lecture Notes in Informatics - Proceedings N2 - This paper presents the results of 11 in-depth interviews with digital agricultural startups. The results reveal seven main assumptions startups make about the situation on the agricultural market, their target group, their growth and the challenges they face. KW - Unternehmensgründung KW - Kritische Masse KW - Tiefeninterview KW - startup KW - critical mass KW - in-depth-interviews Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-11999 SN - 1617-5468 VL - 2017 IS - 268 SP - 61 EP - 64 ER - TY - JOUR A1 - Eicke, Chris A1 - Schirmer, Daniel A1 - Iezzi, Marco A1 - Daum, Andreas A1 - Krause, Manfred T1 - Ein Steuerungssystem für den netzorientierten Betrieb virtueller Biogas-Verbundkraftwerke JF - Lecture Notes in Informatics N2 - Der zunehmende Anteil erneuerbarer Energien an der Stromproduktion Deutschlands erfordert einen ebenso steigenden Anteil der erneuerbaren Energien an der Bereitstellung von Regelenergie zur Stabilisierung der Stromnetze. Durch die Möglichkeit der zeitlichen Entkopplung von Gas- und Stromproduktion ist insbesondere die Biogastechnologie für die Bereitstellung von Regelenergie geeignet. Der vorliegende Beitrag skizziert ein Steuerungssystem für virtuelle Biogas-Verbundkraftwerke, dessen Oberziel die Stabilisierung des Stromnetzes ist. Die Entwicklung des Systems erfolgt im Zuge des Forschungsprojekts VKV Netz und wird durch das Bundesministerium für Wirtschaft und Energie gefördert. KW - Biogas KW - Erneuerbare Energien KW - Reserveleistung KW - Steuerungssystem KW - Regelenergie KW - EEG KW - Automation Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-11966 SN - 1617-5468 VL - 2017 IS - Proceedings 268 SP - 45 EP - 48 ER - TY - JOUR A1 - Lujak, Marin A1 - Billhardt, Holger A1 - Dunkel, Jürgen A1 - Fernandez, Alberto A1 - Hermoso, Ramon A1 - Ossowski, Sascha T1 - A distributed architecture for real-time evacuation guidance in large smart buildings JF - Computer science and information systems N2 - In this paper, we consider the route coordination problem in emergency evacuation of large smart buildings. The building evacuation time is crucial in saving lives in emergency situations caused by imminent natural or man-made threats and disasters. Conventional approaches to evacuation route coordination are static and predefined. They rely on evacuation plans present only at a limited number of building locations and possibly a trained evacuation personnel to resolve unexpected contingencies. Smart buildings today are equipped with sensory infrastructure that can be used for an autonomous situation-aware evacuation guidance optimized in real time. A system providing such a guidance can help in avoiding additional evacuation casualties due to the flaws of the conventional evacuation approaches. Such a system should be robust and scalable to dynamically adapt to the number of evacuees and the size and safety conditions of a building. In this respect, we propose a distributed route recommender architecture for situation-aware evacuation guidance in smart buildings and describe its key modules in detail. We give an example of its functioning dynamics on a use case. KW - evacuation guidance KW - real-time routing KW - distributed evacuation coordination KW - complex event processing KW - situation aware routing Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:960-opus4-10610 VL - 14 IS - 1 SP - 257 EP - 282 ER -