{{tag>Index Glossary Condition Business_Rule Process Query Report}}
===== Condition =====

A condition is an [[ref:glossary:expression|expression]] in the [[ref:glossary:rule_language|rule language]] which result is either true or false. Examples of conditions:

<code aim>Order.State = 'Approved' </code>

<code aim>Account.Holder.Age < 18 </code>

<code aim>Customer.Name IS UNDEFINED </code>

<code aim>LineItem WAS ADDED TO Order.Items </code>

Conditions are an essential part of [[ref:glossary:rule|rules]], where they determine when the rule [[ref:glossary:action|actions]] need to be executed, and of [[ref:glossary:query|queries]] where they specify which [[ref:glossary:business_object|business objects]] to find. Conditions are also used for [[ref:glossary:conditional_element|conditional elements]] in [[ref:glossary:report|reports]] and [[ref:glossary:presentation|presentations]] to specify how a particular element should be displayed.