Variability as a Service: Outsourcing Variability Management in Multi-tenant SaaS Applications

  • Ali Ghaddar
  • Dalila Tamzalit
  • Ali Assaf
  • Abdalla Bitar
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7328)

Abstract

In order to reduce the overall application expenses and time to market, SaaS (Software as a Service) providers tend to outsource several parts of their IT resources to other services providers. Such outsourcing helps SaaS providers in reducing costs and concentrating on their core competences: software domain expertises, business-processes modeling, implementation technologies and frameworks etc. However, when a SaaS provider offers a single application instance for multiple customers following the multi-tenant model, these customers (or tenants) requirements may differ, generating an important variability management concern. We believe that variability management should also be outsourced and considered as a service. The novelty of our work is to introduce the new concept of Variability as a Service (VaaS) model. It induces the appearance of VaaS providers. The objective is to relieve the SaaS providers looking forward to adopt such attractive multi-tenant solution, from developing a completely new and expensive variability solution beforehand. We present in this paper the first stage of our work: the VaaS meta-model and the VariaS component.

Keywords

SaaS multi-tenant variability 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ali Ghaddar
    • 1
    • 2
  • Dalila Tamzalit
    • 2
  • Ali Assaf
    • 1
  • Abdalla Bitar
    • 1
  1. 1.BITASOFTNantesFrance
  2. 2.LINAUniversité de NantesFrance

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