The document discusses the life cycle of software as a service (SaaS) applications. It notes that very few web applications from 1998 have survived and only one from 2003 remains in the IT sector. It identifies factors that can kill a web app such as new features, scalability issues, and compatibility with new third party software. The document recommends ways to extend the life of a web app such as proper business planning, using frameworks, standards, and designing for scalability from the beginning.

8. Math

9. Math