1. Cloud Computing Eurcom Adomas Svirskas Sophia-Antipolis FranceThe 3rd meeting of the Special Interest Group on eBusiness and eCommerce, Kingston University, 12/05/2009

2. Todays Topics What is Cloud Computing? Why do we care? Flavors of the Cloud Computing What Cloud Computing can do for us? Important things to keep in mind It is cool, now what? How to reach the clouds? 3. What is Cloud Computing Anyone? Ask 10 IT professionals and you will end- up with 10 different answers Cloud computing (CC) is a way of providing both hardware and software as a service via the Internet, on demand 4. Cloud Computing Combines The concept of software-as-a-service (SaaS), where a software application is accessed and used in a hosted environment Together with the concept of utility computing, where shared, scalable software and hardware is purchased on a usage basis (IaaS, PaaS) 5. Why do we care? Because the whole world is nuts about it? Because it is a new shiny gadget? Well, yes by definition we are geeks However, more practically Because it can save money (for everyone of us) Because we need to teach students, CC is already very important in the field Gives us interesting research opportunities 6. IaaS, PaaS, SaaS XaaS ? Infrastructure as a Service - computing resources such as servers, storage, and other forms of low level network and hardware resources offered in a virtual, on demand fashion over the Internet IaaS in a general sense, delivers value similar to what one might find in a traditional datacenter Examples GoGrid, Amazon EC2, etc 7. PaaS Platform as a Service - a runtime-system and application framework that presents itself as an execution environment and computing platform available over the Internet with the sole purpose of acting as a host to application software 8. PaaS It is foundation upon which it is possible to build highly scalable and robust Web- based applications in the same way that the traditional operating systems like Windows and Linux have done in the past for software developers. Operational capability of the platform hosting is the primary value here 9. Evolution of Google PaaS 10. SaaS Software as a Service - Specialized software functionality delivered over the Internet to users who intend to use the set of delivered functionality to augment or replace their application domain solutions Examples: Salesforce.com CRM, or SugarCRM 11. SaaS vs. PaaS vs. IaaS http://www.saasblogs.com/2008/12/01/demystifying-the-cloud-where-do-saas-paas-and-other-acronyms-fit-in/ 12. XaaS Taxonomy 13. CC Taxonomy 14. What CC can do for us? Save money by moving a part of IT expenses from capital investment to operational expenses Unlock virtually unlimited computational resources Augment and complement SOA concepts and solutions 15. Not to forget It is still Day One of CC Availability issues, outages, downtimes Jurisdiction aspects, e.g. WHERE the data is stored Security and Privacy Licensing, contractual issues Standardization (your cloud is not my cloud yet we need to talk) 16. Summary The field is new, huge and promising CC is a REALITY Industry support (CC Expo in New York was a good place to experience this) Open source support Research community interest Every IT professional must be knowledgeable in CC area CC is available to try it out 17. Thank you!Q&A? 18. References Dion Hinchcliffe blog, Enterprise Web 2.0 http://blogs.zdnet.com/Hinchcliffe/?cat=78 Peter Laird blog, http://peterlaird.blogspot.com/2008_05_01_archive.html Issues related to CC arrangements, http://www.seyfarth.com/index.cfm/fuseaction/publica tions.publications_detail/object_id/9275a22b-3998-494c-84d8- 7d234e503d82/IssuesRelatedToCloudComputingArrangements.cfm Demystifying The Cloud: Where Do SaaS, PaaS and Other Acronyms Fit In? http://www.saasblogs.com/2008/12/01/demystifying-the-cloud- where-do-saas-paas-and-other-acronyms-fit-in/