1. Software as a Service By Tommy Kauffman CSC342

2. Software as a Service Extension of ASP – Application Service Provider Software is offered by a vendor and is paid for by a client SaaS was first coined in February 2001 by the Software and Information eBusiness Division

3. Characteristics of SaaS Top most layer of cloud computing stack SaaS, PaaS, IaaS Most widely used layer of cloud computing Available remotely by the internet Strong communication No huge licensing costs Fast and easy set up

5. Advantages Scalability and rapid deployment Auto updates Repair costs are vendor responsibility Storage is vendor responsibility Pay by use (subscription, monthly, usage, free) Fewer personnel Lower total cost of ownership Mobility

7. Cost Comparison (Based on real business with 10 users every 3 years) 10 users at $595 / month 10 users running Financial App Communication Charges PT Database Admin Software support Hardware support OS licenses Implementation Services Totals: In-House ASP ----- $214,000 $60,000 ----- $100,000 ----- $90,000 ----- $30,000 ----- $45,000 ----- $5,000 ----- 65,000 ----- $395,000 $214,000

8. Disadvantages Security Issues Data is stored by vendor of software Some applications are not offered through SaaS Must have a strong internet connection (fast and reliable) Customization

9. Example Gmail Hotmail Mikogo

11. Sources Glitten, Sandra. “Finance’s role in controlling use of SaaS”. CFOworld. 4 April, 2011.. Gray, Mike. “Cloud Computing: Demystifying IaaS, PaaS, and SaaS”. SPS Commerce. 21 October 2010.. Gruman, Galen. “The Truth About Software as a Service (SaaS)”. 21 May 2007, 1- 8.. Software & Information Industry Association. “Software as a Service: Strategic Backgrounder”. February 2001. Print