In this part …

Though Part II is about building the right application, this part of the book is all about building the app right. Chapter 8 talks about making your app fast and responsive (qualities that, by the way, aren't the same thing, as you will see), and Chapter 9 talks about security. Without speed, responsiveness, and security, your app won't be successful when it's released, regardless of how cool its features might be. This part shows you how to make it so.