@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} }