For enhanced reuse, MetaProperties can be organized in a Pool and linked to many MetaClasses, using the [[SYSREL_METAPROPERTY|Systemrelation MetaProperty]]
==Initial value==
The initial value of a MetaProperty defines which value will be set to the property initially when a new instance of it is created. Once the value is changed, the initial value is lost for this instance.
==Default value==
The default value of a MetaProperty defines which value will be delivered by a property if it doesn't have an own value set.
==Editing a MetaProperty==
Once a MetaProperty is used on a single [[MetaClass]] editing of properties is restricted to properties that may not effect data validity.
The System uses a [[Rule]] to validate the edited properties and creates a [[RuleViolation]] whenever a "locked" property is edited.
Following properties may not be changed/edited for a "used" MetaProperty:
*Name
*PropertyType
==Released To LiveMode==