Cloud Computing: The Emergence of the 5th Utility

  • David Dempsey
  • Felicity Kelliher


This chapter provides an overview of the evolution of the Cloud Computing (CC) Software as a Service (SaaS) concept and its emergence of the 5th utility. Within CC, SaaS is defined as a software licencing and hosted delivery model in which software is licensed on a subscription basis and delivered as a service over the Internet. The chapter goes on to discuss SaaS under the utility model, highlighting the key criteria to be considered when building a sustainable SaaS revenue model.


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Copyright information

© The Author(s) 2018

Authors and Affiliations

  • David Dempsey
    • 1
  • Felicity Kelliher
    • 2
  1. 1.SalesforceDublinIreland
  2. 2.Business SchoolWaterford Institute of Technology Business SchoolWaterfordIreland

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