IVOA Data Access Layer



The task of the DAL working group is to define and formulate VO standards for remote data access. Client data analysis software will use these services to access data via the VO framework; data providers will implement these services to publish data to the VO. The DAL working group will define the scope of the DAL standards, outline a process by which DAL standards are defined, and generate the initial version 1.0 of the DAL standard. This standard will provide guidance to data centers and survey projects when designing VO compliant interfaces. It will allow them to justify the allocation of resources for its implementation and maintenance. Once the work on Version 1.0 is accomplished the working group will coordinate future development of the standard.

Current Activities

DAL future

  • Feedback, prototypes, ideas and proposals

Idle or Abandoned

Past Activities

WG Roadmap

Notes on Defining a DAL Standard

This page contains some ideas and definitions to help frame the definition of DAL standards. To be discussed.

Notes on Defining new service parameters

This page contains some hints to help defining new service paremeters accordig to the 3 factor semantics.

Recommended reading

How to contribute

Topic attachments
I Attachment Action Size Date Who Comment
PDFpdf DAL-Cambridge-Report.pdf manage 145.8 K 2003-10-23 - 21:01 DougTody Cambridge DAL WG Plenary Report
PowerPointppt DAL-Strasbourg-Report.ppt manage 987.5 K 2003-10-23 - 20:35 DougTody Strasbourg DAL WG Plenary Report
Microsoft Word filedoc IVOA-DAL-Jul03.doc manage 38.0 K 2003-07-23 - 06:10 MarkusDolensky DAL Progress Report July 03 by D. Tody
PDFpdf IVOA-DAL-Jul03.pdf manage 19.3 K 2003-07-23 - 06:09 MarkusDolensky DAL Progress Report July 03 by D. Tody
PDFpdf TAP-Analysis.pdf manage 419.7 K 2007-09-26 - 16:06 KeithNoddle  
PDFpdf TAP-draft.pdf manage 79.8 K 2007-09-26 - 16:06 KeithNoddle  
PDFpdf dalsedspec.pdf manage 1218.9 K 2003-10-18 - 16:16 MarkusDolensky SEDs & AVO prototype and ... (.pdf)
PowerPointppt dalsedspec.ppt manage 284.5 K 2003-10-18 - 15:38 MarkusDolensky SEDs & AVO prototype and evolution to SSA
PDFpdf ranking-v01.pdf manage 100.9 K 2006-05-12 - 14:35 MarkusDolensky Ranking Query Result Sets
PowerPointppt sIAevol1.ppt manage 37.5 K 2003-10-23 - 20:48 DougTody URL templating etc. proposals by F. Bonnarel
PDFpdf spie04-5493-47.pdf manage 527.6 K 2004-07-01 - 15:16 MarkusDolensky SSA poster, status June 2004, 3x3 ft.
Microsoft Word filedoc ssa-v01-MD.doc manage 4752.0 K 2004-09-25 - 14:12 MarkusDolensky SSA Spec. V0.1
XMLxml ssample1.xml manage 31.3 K 2004-09-25 - 13:31 MarkusDolensky SSA sample SED serialization in VOTable format
XMLxml ssample20041021.xml manage 31.8 K 2004-10-21 - 13:46 MarkusDolensky VOTable serialization; SSA data format
Topic revision: r65 - 2017-03-07 - FrancoisBonnarel
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