PaaS – Platform as a Service

The abstraction of applications from traditional limits of hardware allows developers to focus on application development and not worry about operating systems, infrastructure scaling, load balancing, and so on.

• Examples include Google App Engine (Java, Python), MS Azure (.net), and Heroku (RoR).

Platform delivery model.

• Platforms are built upon Infrastructure, which is expensive.

• Estimating demand is not a science!

• Platform management is not fun!

Advantages.

• No sysadmin tasks.

• Better Security.