Interface > Working with Data Exchange Formats > ICEM > About Importing ICEM Surf Models
  
About Importing ICEM Surf Models
ICEM is an Associative Topology Bus (ATB)-enabled data exchange format. ICEM surfaces, when imported or appended to models in the Creo application, create ATB-enabled import IN features.
The following import and append operations create ATB-enabled IN features:
Import an ICEM model as a new part with File > Open.
Append an ICEM model as a new feature of an existing part with Model > Get Data > Import.
Assemble an ICEM model as a part component of an existing assembly with Component > > Assemble.
ATB allows the associative update of imported data when changes are made to the native ICEM data.