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SLA-based management of software licenses as web service resources in distributed environments

: Cacciari, C.; Mallmann, D.; Zsigri, C.; D'Andria, F.; Hagemeier, B.; Rumpl, A.; Ziegler, W.; Martrat, J.


Altmann, J.:
Economics of grids, clouds, systems, and services. 7th international workshop, GECON 2010 : Ischia, Italy, August 31, 2010; Proceedings
Berlin: Springer, 2010 (Lecture Notes in Computer Science 6296)
ISBN: 978-3-642-15680-9
ISBN: 3-642-15680-0
ISSN: 0302-9743
International Workshop on Grid Economics and Business Models (GECON) <7, 2010, Ischia>
Conference Paper
Fraunhofer SCAI ()
software licenses; distributed computing infrastructures; grid; cloud; SLA negotiation; WS-agreement

Until recently the use of applications requiring a software license for execution was quite limited in distributed environments. Due to the mandatory centralised control of license usage at application run- time, e.g. heartbeat control by the license server running at the home site of a user, traditional software licensing practices are not suitable especially when the distributed environment stretches across adminis- trative domains. In this paper we present a novel approach for managing software licenses as web service resources in distributed service oriented environments. Licenses become mobile objects, which may move to the environment where required to authorise the execution of a license pro- tected application. A first implementation has been realised for dynamic Grid environments in the European SmartLM project co-funded by the European Commission. The SmartLM solution decouples authorisation for license usage from authorisation for application execution. All authorisations are expressed as and guaranteed by Service Level Agreements. We will present the core technology, discuss various security aspects and how they are addressed in SmartLM, and present a number of usage scenarios leveraged by the SmartLM technology. Finally, we will give an outlook on specific issues and current work extending the solution to Clouds and service based systems in general.