Assertion: prototype's use | /r/HasProperty | common
Facets:
Source sentences:
text: Using thumbtacks or small nails as mounting posts was also common.
text: Use of 3rd parties is commonplace and sometimes it is impractical for a supplier to validate their components when the rig / platform / refinery is operated long after the valve / compressor has been designed and supplied (for example).Pretty much the definition of validation.