VariableName	VariableLabel	Type	Controlled Terms, Codelist or Format	Role	Definition	Core
STUDYID	Study Identifier	Char		Identifier	Unique identifier for a study.	Req
DOMAIN	Domain Abbreviation	Char	DT	Identifier	Two-character abbreviation for the domain.	Req
SPDEVID	Sponsor Device Identifier	Char		Identifier	Sponsor-defined identifier for the device.	Req
DTSEQ	Sequence Number	Num		Identifier	Sequence Number given to ensure uniqueness of device records within subject records (if applicable) within a domain.	Req
DTTERM	Reported Term for the Tracking Event	Char	*	Topic	Verbatim or preprinted term for the activity that occurs.	Req
DTMODIFY	Modified Reported Term	Char		Synonym Qualifier	Modified term entered to allow mapping of verbatim term to dictionary term	Perm
DTDECOD	Standardized Tracking Term	Char	*	Synonym Qualifier	Dictionary-derived text description of DTTERM or DTMODIFY.	Perm
DTPARTY	Party Responsible for the Device	Char	*	Record Qualifier	Person or organization accountable for the device at the conclusion of the action specified in DTTERM.	Req
DTPRTYID	Responsible Party Identifier	Char		Variable Qualifier	An identifier for the responsible group/role (e.g. site, subject).	Exp
DTCAT	Category for Device Tracking Event	Char	*	Grouping Qualifier	Define a categorization level for a group of related records.	Exp
DTSCAT	Subcategory for Device Tracking Event	Char		Grouping Qualifier	Defines a further categorization level for a group of related conditions or events.	Perm
DTDTC	Date/Time of Device Tracking Event Collection	Char	ISO 8601	Timing	Date/Time of the tracking event information was collected.	Perm
DTSTDTC	Start Date/Time of Device Tracking Event	Char	ISO 8601	Timing	Start date/time of tracking event.	Req