The RFC process of this model is frozen by the Authors

The team is investigating a simpler SSLAP solution that wouldn't use SSLDM2 at all.
if this approach succeed, we do not need SSLDM2 anymore.

Laurent.Michel 08/05/2020


This is the RFC page for the 2nd version of the Simple Spectral Lines Data Model.

PR document is accessible here

VODML file is accessible here

Reference Implementation

Services implementing SLAP2 / SSLDM 2 : : sprectoscopic VUV data for H2, D2, HD and CO : LS-coupling energy levels for astrophysically abundant ions (Z=1,14; Z=16; Z=18; Z=20; Z=26) computed in the Opacity Project

Implementations Validators

Lines endpoint validator

Species endpoint validator

Slap V2 client prototype has been implemented in CASSIS

You can select the SLAP service in the Cassis database settings menu and display the lines over spectra and click on it to have the informations about the lines. The SLAP database path is For more information, see talk about CASSIS at IVOA Groningen 2019-Netherlands

RFC Review Period: 2019-10-01 - 2019-11-13


Comments from TCG member during the RFC/TCG Review Period: 2019-10-01 - 2019-11-13

WG chairs or vice chairs must read the Document, provide comments if any (including on topics not directly linked to the Group matters) or indicate that they have no comment.

IG chairs or vice chairs are also encouraged to do the same, althought their inputs are not compulsory.

TCG Chair & Vice Chair (Patrick Dowler, Janet Evans)

Applications Working Group (Tom Donaldson Raffaele D'Absrusco)

Data Access Layer Working Group (Marco Molinaro, James Dempsey)

Data Model Working Group (Laurent Michel Jesus Salgado)

Grid & Web Services Working Group (Giuliano Taffoni, Christine Banek)

Registry Working Group (Theresa Dower, Pierre Le Sidaner)

Semantics Working Group (Markus Demleitner, Carlo Maria Zwölf)

Data Curation & Preservation Interest Group (Andre Schaaff, Tim Jenness)

[Education Interest Group]] (Chenzhou Cui, Hendrik Heinl)

[Knowledge Discovery Interest Group]] (Kai Lars Polsterer, Matthew Graham)

Solar System Interest Group (Baptiste Cecconi, Steve Joy)

Theory Interest Group (Carlos Rodrigo, Gerard Lemson)

I am no expert on this subject, have some technical comments only for now.

This model is not Single .. but Simple Spectral Lines Data Model (I have fixed the header of this page)

The PDF seems to have been created form th docx with track changes enabled. There is a wide right margin.

The VO-DML file has some issues:

* <name> of the model is 'template'. That name is to be used as prefix when referring to the model, hence would likely need to be something like 'ssldm' or better 'ssl' to conform with other data models that do not add the 'dm' suffix?

* There are a lot of missing descriptions, indicated by elements like the following which are generated by the xmi2vodml pipeline when a missing describption field is found in a UML document.


TODO : Missing description : please, update your UML model asap.


Time Domain Interest Group (Ada Nebot, Dave Morris)

Operations (Mark Taylor, Steve Groom)

Standards and Processes Committee (Christophe Arviset)

TCG Vote : 2019-10-01 - 2019-11-13

If you have minor comments (typos) on the last version of the document please indicate it in the Comments column of the table and post them in the TCG comments section above with the date.

Group Yes No Abstain Comments














Edit | Attach | Watch | Print version | History: r12 < r11 < r10 < r9 < r8 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r12 - 2020-05-08 - LaurentMichel
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © 2008-2024 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback