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Thursday, July 14, 2011

SaaS - Cloud Computing

Tell your friends:
What is Software as a Service (SaaS)?

Software as a Service (SaaS) is a cloud computing model, which hosts various software applications and makes them available to customers over the Internet or other network. There are two main software delivery models for SaaS:
  1. to give an online access to a single copy of an application,
  2. to host commercially available software and deliver it over Internet.
The last opportunity is very similar to one, which is used for other on demand computing software delivery models, for example ASP (application service provider). However due to its global accessibility and main technologies that support service-oriented architecture (SOA), Web services and even new developmental approaches, SaaS is becoming more and more popular amongst other software delivery models.

The main advantages of SaaS model are:
  • no concerns about software buying (licenses), installing and maintaining,
  • automatic updates and patch management,
  • automation of administrative tasks,
  • easier collaboration with other users – everyone has the same version of software,
  • world-wide access.
Software as a Service (SaaS) is one of three models of cloud computing service. The other two are Platform as a Service (PaaS) and Infrastructure-as-a-Service (IaaS).



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