Integration with Other Applications > Creo Parametric – Windchill Integration > Administration and Configuration > Configuring Windchill for Interoperation with Creo Parametric > Mapping Creo Parametric Parameters to Windchill Attributes > Implicit Parameter-to-Attribute Mapping
  
Implicit Parameter-to-Attribute Mapping
Implicit parameter-to-attribute mapping occurs when there is an attribute in Windchill with a name (all uppercase) identical to the name of a designated parameter in a Creo Parametric model file and there is no conflicting mapping specified on the attribute. When the Creo Parametric model file is uploaded into Windchill as content of a CAD document, the values of the Creo Parametric parameter are transferred to the Windchill attribute. For more information on attribute mapping, see the Windchill Help Center.
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Using Creo Elements/Pro 5.0 and later releases of Creo with Windchill 10.0 M030 and later releases, it is possible to map designated unit-based parameters (and dimensions) to unit-less Windchill attributes. However, for customers upgrading to Creo Elements/Pro 5.0 from earlier releases, the neutral data updates still need to take place, meaning that a family table upgrade is necessary. Those customers already on Wildfire 5.0 or higher, and who have previously upgraded and remapped to unit-based attribute, are not required to perform a subsequent neutral data upgrade.