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@ARTICLE{Cacciari:17959,
      author       = {Cacciari, C. and Mallmann, D. and Zsigri, C. and D'Andria,
                      F. and Hagemeier, B. and Rumpl, A. and Ziegler, W. and
                      Martrat, J.},
      title        = {{SLA}-based management of software licenses as web service
                      resources in distributed computing infrastructures},
      journal      = {Future generation computer systems},
      volume       = {28},
      issn         = {0167-739X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-17959},
      pages        = {1340 - 1349},
      year         = {2012},
      note         = {Some of the work reported in this paper has been funded by
                      the European Commissions ICT programme in the FP7 project
                      SmartLM under grant #216759 and is currently funded under
                      grant #257115 in the FP7 project OPTIMIS. This paper also
                      includes work funded by the German Federal Ministry of
                      Education and Research through the D-Grid project under
                      grant #01AK800A. Last but not least the authors gracefully
                      acknowledge the stimulating discussions in the GRAAP-WG.},
      abstract     = {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 runtime, 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 computing infrastructure
                      stretches across administrative 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
                      travel to the environment where required to authorise the
                      execution of a license protected 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 the SmartLM prototype, and present
                      the evaluation of the prototype through a number of usage
                      scenarios. Finally, we will give an outlook on specific
                      issues and current work extending the solution to Clouds and
                      service based systems in general. (C) 2011 Elsevier B.V. All
                      rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {JSC},
      ddc          = {004},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {Scientific Computing (FUEK411) / 412 - Grid Technologies
                      and Infrastructures (POF2-412) / SMARTLM - Grid-friendly
                      software licensing for location independent application
                      execution (216759) / OPTIMIS - Optimized Infrastructure
                      Services (257115)},
      pid          = {G:(DE-Juel1)FUEK411 / G:(DE-HGF)POF2-412 /
                      G:(EU-Grant)216759 / G:(EU-Grant)257115},
      shelfmark    = {Computer Science, Theory $\&$ Methods},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000306888400018},
      doi          = {10.1016/j.future.2011.11.005},
      url          = {https://juser.fz-juelich.de/record/17959},
}