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SLA Design and Service Provisioning for Outsourced Services

  • Filipe T. Marques
  • Jacques P. Sauvé
  • J. Antão B. Moura
Article

Abstract

In this work, a business-driven approach to designing Service Level Agreements in an e-commerce environment is proposed. In contrast to conventional SLA design approaches, the one proposed better captures the relationship between service provider and service client by considering the negative business impact (business loss) originated from IT infrastructure failures and performance degradation and introduces such knowledge into the SLA itself. A complete example scenario shows the value of the proposed approach. A main conclusion is that the SLA established using the business-driven perspective is superior to the one based on a conventional approach since both service provider and client can simultaneously obtain higher profit.

Keywords

SLA design Service availability Response time Business-driven IT management 

Notes

Acknowledgments

We would like to acknowledge and thank the Bottom Line Project team—special thanks to Rodrigo Rebouças—for their support and discussions. This work was developed in collaboration with HP Brazil R&D.

References

  1. 1.
    Taylor, R., Tofts, C.: Death by a thousand SLAs: a short study of commercial suicide pacts. Report HPL-2005-11, Trusted Systems Laboratory, HP Laboratories Bristol, January 2005Google Scholar
  2. 2.
    Sauvé, J., Marques, F., Moura, A., Sampaio, M., Jornada, J., Radziuk, E.: SLA design from a business perspective. In: 16th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM), Lecture Notes in Computer Science, Springer, 2005, http://dx.doi.org/10.1007/11568285_7
  3. 3.
    Sallé, M., Bartolini, C.: Management by contract. In: 2004 IEEE/IFIP Network Operations and Management Symposium (NOMS), IEEE Computer Society, 2004Google Scholar
  4. 4.
    Machiraju, V., Bartolini, C., Casati, F.: Technologies for business driven IT management. In: Cavedon, L., Maamar, Z., Martin, D., Benatallah, B. (eds.) Extending Web Services Technologies: The Use of Multi-Agent Approaches. Springer (2004), http://dx.doi.org/10.1007/0-387-23344-X_1
  5. 5.
    Sahai, A., Bartolini, C., Sauvé, J.P.: In: Proceedings of the First, Second and Third IEEE/IFIP International Workshops on Business-Driven IT Management, 2006/2007/2008, http://ieeexplore.ieee.org/servlet/opac?punumber=10973, http://ieeexplore.ieee.org/servlet/opac?punumber=4261088, http://ieeexplore.ieee.org/servlet/opac?punumber=4534400
  6. 6.
    Beulen, E., Ribbers, P. M. A.: IT outsourcing contracts: Practical implications of the incomplete contract theory. In: 36th Hawaii International Conference on System Sciences (HICSS), Hawaii, 2003, p. 268Google Scholar
  7. 7.
    Sauvé, J., Marques, F., Moura, A., Sampaio, M., Jornada, J., Radziuk, E.: Optimal design of E-commerce site infrastructure from a business perspective. In 38th Hawaii International Conference on System Sciences (HICSS), Hawaii, 2005, p. 178.3Google Scholar
  8. 8.
    Diao, Y., Hellerstein, J., Parekh, S.: A business-oriented approach to the design of feedback loops for performance management. In: 12th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM), 2001Google Scholar
  9. 9.
    Abrahão, B., Almeida, V., Almeida, J.: Self-adaptive SLA-driven capacity management for internet services. In: 17th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM), 2006Google Scholar
  10. 10.
    Menascé, D.A., Almeida, V.A.F., Dowdy, L.W.: Performance by Design: Computer Capacity Planning by Example. Prentice-Hall, PTR, NJ, USA (2004)Google Scholar
  11. 11.
    Buco, M., Chang, R., Luan, L., Ward, C., Wolf, J., Yu, P., Kosar, T., Shah, S.: Managing eBusiness on demand SLA contracts in business terms using the cross-SLA execution manager SAM. In: Proceedings of the Sixth International Symposium on Autonomous Decentralized Systems (ISADS’03). IEEE Computer Society (2003), p. 157, http://dx.doi.org/10.1109/ISADS.2003.1193944
  12. 12.
    Trivedi, K.S.: Probability and Statistics with Reliability, Queuing, and Computer Science Applications. Prentice-Hall, NJ, USA (1982)Google Scholar
  13. 13.
    Menascé, A.D., Almeida, V.A.F.: Scaling for E Business: Technologies, Models, Performance, and Capacity Planning. Prentice Hall, PTR, NJ, USA (2000)Google Scholar
  14. 14.
    Kleinrock, L.: Queueing Systems, Volume I: Theory. Wiley-Interscience (1976)Google Scholar
  15. 15.
    Janakiraman, G.J., Santos, J.R., Turner, Y.: Automated multi-tier system design for service availability. In: Proceedings of the First Workshop on Design of Self-Managing Systems, 2003Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Filipe T. Marques
    • 1
  • Jacques P. Sauvé
    • 2
  • J. Antão B. Moura
    • 2
  1. 1.Unidade de Desenvolvimento de Software da Paraíba—UDPB, Empresa de Tecnologia e Informações da Previdência Social—DATAPREVJoão PessoaBrazil
  2. 2.Department of Systems and Computing—DSCFederal University of Campina Grande—UFCGCampina GrandeBrazil

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