metadataType

A label further classifying the content of metadata resource.

Valid Values	Description	Source
assay	Metadata that describes details related to the assay and/or protocol used to generate the data
biospecimen	Metadata that describes the biospecimen (aka samples) used to generate the data
data dictionary	A table that defines the fields, values, and rules for another metadata file.
protocol	A document detail procedures used that contributed to the generation of data.
single-cell metadata
target panel
template	An example document conforming to a specified format.
user manual	A vendor-created document outlining details for performing procedures, using equipment, etc.