Prov-WD: DatasetEntity not clearly defined

Ole Streicher ole at aip.de
Mon Jul 15 16:43:46 CEST 2019


Hi DM,

the semantics of the DatasetEntity class is not clearly defined: The
definition is in 2.6 "Specific types of Entity classes", pg.26:

"* Dataset: a dataset is a resource which encodes data in a defined
structure. It is generally a file or a set of files which are considered
to be a single deliverable. The content may be e.g. a cube, an image, a
table, a list."

Obviously, this may be a file or a set of files. However, since only a
single contentType is allowed, a set of files seems to be restricted to
a homogeneous set (with all the same contentType), but not a set of
files with different contentTypes? Or is this allowed, as long as there
is no (optional) entityDescription? This should be made clear.

Also, the first part of the definition also may refer to a database, or
a part of it (table, row, column, cell for relational ones). It is
unclear whether these are allowed as DatasetEntity, and how to fill the
attributes (location, contentType) in this case.

Best

Ole


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