@incollection{GuentherTamm2000, author = {G{\"u}nther, Oliver and Tamm, Gerrit}, title = {A Framework for ASP-Marketplaces}, series = {Cooperative Information Systems}, booktitle = {Cooperative Information Systems}, editor = {Scheuermann, Peter}, publisher = {Springer}, address = {Berlin}, publisher = {SRH Berlin University of Applied Sciences}, pages = {114 -- 119}, year = {2000}, abstract = {For organizations that plan to use online software applications via Internet one of the most important questions is, "How do you choose the right ASP for the companies corporate needs?". ASP marketplaces offer a plurality of pricing models and different levels of service. From whole system and whole service to single applications and methods, every digital product and service can be provided through an ASP marketplace. There is a need for ASP marketplaces, which gives the user a transparent insight into the ASP market. In this paper we define Application Service Providing in the context of Outsourcing. Then we analyze relevant software classes for ASP marketplaces. Finally we will set criteria to compare different levels of service of ASP marketplace. This paper gives an overview of key characteristics ASP marketplace provider must take into account by preparing the business process in order to successfully deliver application services.}, language = {en} } @inproceedings{TammGuenther2000, author = {Tamm, Gerrit and G{\"u}nther, Oliver}, title = {Business Models for ASP Marketplaces}, series = {Proceedings of the Eighth European Conference on Information Systems}, booktitle = {Proceedings of the Eighth European Conference on Information Systems}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-7046}, pages = {968 -- 975}, year = {2000}, abstract = {Abstract: ASP (Application Server Provider) marketplaces provide a fundamental alternative to the classical business model of software licensing. At this point, it is still unclear why and when customers prefer the ASP model over more traditional approaches. To make ASP more attractive, more knowledge about possible pricing and product strategies is needed. In this paper we describe different business models for ASP marketplaces. We first compare the cost structures of the classical licensing model with the new server-based approach. Then we illustrate how price and product differentiation may improve overall market efficiency. In particular, we show that by selling different software versions for different prices, ASP marketplaces may obtain near-optimal revenues with products that are relatively inexpensive, disaggregated, and customizable. Consumers can thus choose between a wide variety of product lines to fit their differing budgets and requirements.}, language = {en} } @article{GuentherTammLeymann2007, author = {G{\"u}nther, Oliver and Tamm, Gerrit and Leymann, Frank}, title = {Pricing web services}, series = {International Journal of Business Process Integration and Management (IJBPIM)}, volume = {2}, journal = {International Journal of Business Process Integration and Management (IJBPIM)}, number = {2}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-6511}, pages = {132 -- 140}, year = {2007}, abstract = {This paper focuses on the challenges associated with composing and pricing web services. We present the results of an online experiment, where subjects were confronted with a variety of choices and decisions relating to web service markets and service composition. Our analysis shows that people expect the price of a composite web service to be lower than the sum of the prices of the elementary services, that is, users are not willing to pay for aggregation by a third party. To obtain a viable business model for composite web services, non-standard pricing mechanisms, such as auctions and negotiations, possibly supported by electronic agents, have to be taken into consideration. Usage-based pricing schemes, combined with an option to switch to a flat subscription, seem most appropriate to penetrate the developing market for web services.}, language = {en} } @article{GuentherTammHansenetal.2001, author = {G{\"u}nther, Oliver and Tamm, Gerrit and Hansen, Lars and Meseg, Thomas}, title = {Application Service Providers: Angebot, Nachfrage und langfristige Perspektiven}, series = {Fachzeitschrift Wirtschaftsinformatik}, volume = {43}, journal = {Fachzeitschrift Wirtschaftsinformatik}, number = {6}, pages = {555 -- 567}, year = {2001}, abstract = {Netzbasierte Dienste, im englischen Sprachraum als Web-based Services oder Hosted Services bekannt, gewinnen zunehmend an Popularit{\"a}t. Zahlreiche Softwareanbieter pr{\"a}sentieren sich am Markt als Application Service Provider (ASP), d.h. als Anbieter netzbasierter Anwendungsdienste. Hierbei kann das ASP-Modell den einzigen Vertriebskanal darstellen (reiner ASP) oder aber als Erg{\"a}nzung neben das klassische Lizenzmodell treten. W{\"a}hrend junge Firmen (wie z. B. Salesforce.com) ihr Gl{\"u}ck als reiner ASP versuchen, w{\"a}hlen etablierte Anbieter im Regelfall die zuletzt genannte Option SAP mit seinem ASP-Produkt mySAP.com ist hierf{\"u}r eines der bekannteren Beispiele.}, language = {de} } @book{TammGuenther2005, author = {Tamm, Gerrit and G{\"u}nther, Oliver}, title = {Webbasierte Dienste: Technologien, M{\"a}rkte und Gesch{\"a}ftsmodelle}, publisher = {Physica-Verlag}, address = {Heidelberg}, isbn = {3-7908-1566-7}, publisher = {SRH Berlin University of Applied Sciences}, pages = {XVII, 258}, year = {2005}, abstract = {Dienstbasierte Architekturen bilden zunehmend eine attraktive Erg{\"a}nzung zu den klassischen Gesch{\"a}ftsmodellen der Softwarenutzung. Das Buch erl{\"a}utert die f{\"u}r webbasierte Dienste relevanten technischen und {\"o}konomischen Konzepte. Anschließend werden unter Zuhilfenahme von empirischen Analysen und Experimenten aktuelle Markttrends und Marktprozesse beschrieben. Dabei gehen die Autoren auch auf die aus dem Konsumg{\"u}terbereich bekannten Vertrauensprobleme und Informationsasymmetrien ein und er{\"o}rtern deren Konsequenzen f{\"u}r den Entwurf von erfolgreichen Gesch{\"a}ftsmodellen und M{\"a}rkten. Einschl{\"a}gige Fallstudien erg{\"a}nzen die Darstellung.}, language = {de} }