1. Life cycle of SaaS by Romans Malinovskis Agile Technologies Limited

2. About Me: Developing software since 1995 In Web applications since 1998 Started Web Developer team in 2004 Incorporated AT in 2007 (CTO) Architect SaaS application and Web interfaces.

3. Your web app is destined to die. 3 web applications survived from 1998 in non-it segment. 1 web application survived from 2003 in it-segment

4. What kills your web app? New features New users (scalability) New 3rd party software (compatibility)

5. Change Requests Business focus change. Shortage of budget (dirty hacks) Incorrect software design

6. Scalability 1. works for me (1) 2. works for client (5) 3. works for existing users (100) 4. stable growth (1000 users)

7. Scalability 10k + Internationally popular Attacks Digg, Newspapers, Magazines 100+ req / sec

8. Math

10. Bottlenecks network 100 mbit/s hardware IO speed system overhead memory IO

11. Clustering It is a completely different application.

12. Re-Write Costs at least twice as much On average done every 3 years Try to make it 5

13. Extending life of web app Proper business planning Use of framework Standards THINK scalability Make backups

14. Questions? www.agiletech.ie we develop SaaS for your business. we develop Web UI for your Software.