Additional Windchill Capabilities > Windchill Aerospace and Defense > Administration and Configuration > Managing Effectivity > Managing Change Directive Effectivity Properties
  
Managing Change Directive Effectivity Properties
Change directive types have two effectivity properties that you must specify. These values are managed in the Type and Attribute Management utility.
Effectivity Context—The part number for the part you created (usually an end item) as a context for the effectivity used by the given change directive type. The specified part is used as the context for effectivety ranges generated by the system for the given change directive. For more information, see Creating a Part for Effectivity Context.
Effectivity Type—The type for the effectivity ranges that are generated for change directives. This value can be used to specify part filters based on effectivity range. This text field requires the following format: internal name of the custom filter type followed by number sign (#) followed by internal name of the effectivity type attribute. For example, com.company.OurFilter#msn.