The following conventions are used in this book to highlight special features or usage:
The following reader aids are used throughout this book to point out useful details:
Underscores the importance of a specific concept or highlights a special case that might not apply to every situation.
Calls attention to essential information that should not be disregarded.
Warns you that failure to take or avoid a specified action can cause serious problems for users, systems, data integrity, and so on.
On the CD
Calls attention to a related script, tool, template, or job aid on the Companion CD that helps you perform a task described in the text.
The following sidebars are used throughout ...