There are many types of policies and many ways to implement them. Some of the main classifications are explained below. A recent draft standard defines the terminology of each kind of policy. That terminology has been adopted in this book, and the standard is summarized in this section.
Limits and Error Event Rules
One of the simplest policies is to define limits on a measurement and associate it with an action. This is often implemented as an “if measure passes threshold then action” rule. Products such as the Sun Enterprise SyMON 2.0 software (referred to hereafter as SyMON) predefine many simple limit rules and allow new rules to be set on any measurement. A limit can be defined as a simple rule with a single input measurement. ...