The following resources provide more information:
Chapter 1, Overview of Installation Options, in Installing Oracle Solaris 11.2 Systems
Part II, Installing Using Installation Media, in Installing Oracle Solaris 11.2 Systems
What Is an Automated Installation? in Installing Oracle Solaris 11.2 Systems
Creating and Administering Oracle Solaris 11.2 Boot Environments
Using Unified Archives for System Recovery and Cloning in Oracle Solaris 11.2
Transitioning From Oracle Solaris 10 JumpStart to Oracle Solaris 11.2 Automated Installer