Provenance

XNAT offers some support for provenance. Provenance is the description of processing steps that a particular data went through to be created. While all the complexity of a processing workflow cannot be represented at the moment, it provides sufficient information to have a good idea of what the data is. Reconstructions and assessors are the only level that support provenance in XNAT.

>>> prov = {'program':'young',
...         'timestamp':'2011-03-01T12:01:01.897987',
...         'user':'angus',
...         'machine':'war',
...         'platform':'linux',
...        }
>>> element.provenance.set(prov)
>>> element.provenance.get()
>>> element.delete()

Warning

The delete method doesn’t work currently.

The provenance set method adds new steps with each call, unless the overwrite parameter is set to True. The following keywords for the provenance dictionnay are available:

• program

• program_version

• program_arguments

• timestamp

• cvs

• user

• machine

• platform

• platform_version

• compiler

• compiler_version