[cdif-community] Mapping X-Ray Absorption Spectroscopy Standards to CDIF

[Asha CODATA]

The purpose of the CDIF-4-XAS project
<https://oscars-project.eu/projects/cdif-4-xas-describing-x-ray-spectroscopy-data-cross-domain-use>
is
to demonstrate that the Cross-Domain Interoperability Framework (CDIF)
<https://cdif.codata.org/> can function as a practical set of
recommendations for an interoperability layer that will facilitate the
aggregation and integration of XAS data for various research purposes.

The project’s second deliverable presents an overview document and a set of
mappings from XAS community standards (XDI and NXxas) to CDIF.

*CDIF-4-XAS: Mappings from Community Standards to
CDIF https://doi.org/10.5281/zenodo.17421917
<https://doi.org/10.5281/zenodo.17421917> *

*GitHub Repository: **https://github.com/CDIF-4-XAS/XAS-CDIF
<https://github.com/CDIF-4-XAS/XAS-CDIF> *

The covering document and the associated spreadsheet and other materials
present an initial attempt to take the major community standards used for
X-Ray Absorption Spectroscopy (XAS) and map them to the standards
recommended for cross-domain FAIR sharing of data by the Cross Domain
Interoperability Framework (CDIF) guidelines. The current standards
landscape within the XAS community has been extensively described in the
document “Overview of X-Ray Absorption Spectroscopy standards, vocabularies
(and ontologies), data formats and practices”. This document builds on the
analysis presented in that document as a concrete exploration of how the
data and metadata from the two most common XAS standards can be expressed
in a CDIF-described package to facilitate use across domain, institutional,
and application boundaries. It is felt that a concrete application of the
standards and guidelines involved will clearly indicate the next steps for
implementation.

While the focus of this document is technical, there are also implications
for how other activities by domain groups and standards bodies can most
effectively be conducted. These implications can be provided as feedback to
various groups, and these will be mentioned here. The specific
recommendations to be made to such groups do not, however, form part of
this deliverable, but will be formulated more completely in other project
deliverables in the future.

The full package comprises the following:

   1. “CDIF-4-XAS: Mappings from Community Standards to CDIF”: this
   document provides an overview for the mapping exercise.
   (CDIF4XAS_Mappings_Intro_V1-FINAL_TEMPLATE.pdf
   2. XAFS Data Interchange (XDI) Format Mapping to CDIF: this document
   shows how the different metadata fields in an XDI file are mapped into
   Schema.org <http://schema.org/> per the CDIF recommendations.
   (XDISpec-FieldsCDIF-Schema.orgMapping.docx)
   3. Example of XDI metadata in CDIF: This is a JSON-LD file formatted
   according to the CDIF recommendations, containing an example of XDI
   metadata (se_na2so4-testschemaorg-cdiv3.jsonLD)
   4. Input XDI file: this is the XDI file used as the basis of the JSON-LD
   exammple in 3. (se_na2so4_rt.xdi)
   5. Mapping Spreadsheet for HDF5/NeXus/NXxas: This spreadsheet describes
   the mapping from HDF5 files created according to the NXxas profile of NeXus
   to CDIF-recommended standards. (XAS-CDIFImplementation.xlsx)
   6. XAS Glossary Spreadsheet: this spreadsheet provides definitions and
   other information for a draft community glossary to support this mapping
   exercise (XAS_Glossary.xslx)
   7. XAS Glossary in SKOS: this files provides a machine-actionable
   version of the community glossary, to serve as an example of how the
   glossary could be published for FAIR purposes. (XAS_Glossary_SKOS.json)

The package fulfills ‘D2: Semantic description of at least two XAS
community standards using a CDIF profile (XAS-CDIF)’ of the OSCARS-funded
project CDIF-4-XAS.


Thanks,

Asha

--
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___________________________

Asha Law | Program Assistant, CODATA | http://www.codata.org

E-Mail: asha at codata.org
Tel (Office): +33 1 45 25 04 96

CODATA (Committee on Data of the International Science Council), 5 rue
Auguste Vacquerie, 75016 Paris, FRANCE
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