Jacobs, DeanFreytag, Johann-ChristophRuf, ThomasLehner, WolfgangVossen, Gottfried2019-02-202019-02-202009978-3-88579-238-3https://dl.gi.de/handle/20.500.12116/20490In the Software as a Service (SaaS) model, a service provider owns and operates an application that is accessed by many businesses over the Internet. A key benefit of this model is that, by careful engineering, it is possible to leverage economy of scaleenSoftware as a service: Do it yourself or use the cloudText/Conference Paper1617-5468