Credits

Structured Data Transformation Language (SDTL) was created by the Continuous Capture of Metadata for Statistical Data (C²Metadata) Project funded by National Science Foundation (ACI-1640575). Defining SDTL was a cooperative activity to which all members of the project contributed.

Participants in the C2Metadata Project:

• George Alter [1] (PI)
• Darrell Donakowski¹
• Jack Gager [2]
• Pascal Heus²
• Carson Hunter²
• Sanda Ionescu¹
• Jeremy Iverson [3]
• Hosagrahar V Jagadish¹
• Carl Lagoze¹
• Jared Lyle¹
• Alexander Mueller¹
• Sigbjørn Revheim [4]
• Matthew A. Richardson¹
• Ørnulf Risnes⁴
• Karunakara Seelam¹
• Dan Smith³
• Tom Smith [5]
• Jie Song¹
• Yashas Jaydeep Vaidya¹
• Ole Voldsater⁴

The C²Metadata Project will end in 2020. Long-term responsibility for maintaining and expanding SDTL has moved to the DDI Alliance, which established an SDTL Working Group.

SDTL Working Group (July 2020):

• George Alter (lead), University of Michigan
• Carson Hunter, Metadata Technologies North America
• Jeremy Iverson, Collectica
• Chifundo Kanjala, Malawi Epidemiology and Intervention Research Unit (MEIRU)
• Dara O’Neill, University College London
• Ørnulf Risnes, Norwegian Centre for Research Data
• Dan Smith, Collectica
• Thomas Thelen, University of California Santa Barbara
• Jim Todd, London School of Hygiene and Tropical Medicine

Copyright and License

Any use of the contents of this package constitutes an acceptance of the terms of the license.

Copyright Statement

Structured Data Transformation Language (SDTL) (Public Review 1.0). Copyright @ 2020, DDI Alliance. All Rights Reserved. http://www.ddialliance.org/

License

The SDTL Specification is free software that you can distribute and/or modify under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license.

This is a human-readable summary of (and not a substitute for) the license.

You are free to:

Share - copy and redistribute the material in any medium or format.

Adapt - remix, transform, and build upon the material for any purpose, even commercially.

The licensor cannot revoke these freedoms as long as you follow the license terms.

Attribution

You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

No additional restrictions

You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation. No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

[1]	University of Michigan

[2]	Metadata Technologies North America

[3]	Algenta Technologies

[4]	Norwegian Centre for Research Data

[5]

NORC