This structure defines the identification of a part, i.e. a Unit Under Test. It is formally defined in Table 142.

PartId structures can be passed by the client with a Start method call and should be stored by he server in results pertaining to that part. Thus they describe the connection between a unit under test and a result, which was created during the processing of a recipe applied on this unit under test.

In its basic version here, the PartIdDataType contains only a TrimmedString. It has been encapsulated in a structure for the purpose of easy sub-typing if more sophisticated identification is required, e.g. including a batch or carrier Id.

A basic PartIdDataType structure is considered empty when the id member has length 0. For sub-types of PartIdDataType this can be defined differently.

Table 142 – Definition of PartIdDataType

Name	Type	Description	O / M
PartIdDataType	structure
id	TrimmedString	Describes the connection between a unit under test and a result, which was created during the processing of a recipe applied on this unit under test. Usually passed by the client with a Start method call and not changed by the server.	Mandatory
description	LocalizedText	Optional short human readable description of the part.	Optional