Control conditions identify the conditions that govern the execution of a rule. A rule may be executed, for example, only when the value of the State field is California. Rules that execute conditionally are identified in the Rules pane with symbol.
Use the autoreplace feature to replace variable names in control conditions with the business names you've assigned to them in your project glossary. A business name identifies the business function of a variable in natural language, and is invaluable in documenting and retrieving business rules. The field PLC_NUM, for example, might have the business name Policy Number.