[tdwg-content] delimiter characters for concatenated IDs

Chuck Miller Chuck.Miller at mobot.org
Mon May 5 16:14:44 CEST 2014

Didn't we reach a general consensus within the last couple of years that the vertical pipe (|) was the preferred concatenation symbol?


From: tdwg-content-bounces at lists.tdwg.org [mailto:tdwg-content-bounces at lists.tdwg.org] On Behalf Of Markus Döring
Sent: Monday, May 05, 2014 8:49 AM
To: "Dröge, Gabriele"
Cc: tdwg-content at lists.tdwg.org
Subject: Re: [tdwg-content] delimiter characters for concatenated IDs

Hi Gabi,
can you explain a little more what you are trying to do giving an example maybe?

It appears to me you are creating (globally) unique identifiers on the basis of various existing fields which is fine. But when you use the identifier to create resource relations they should be considered opaque and you should not need to parse out the underlying pieces again. So in that scenario the character used to concatenate the triplet does not really matter for the end user as long as its unique and points to some existing resource, indicated by the occurrenceID in case of occurrences or the materialSampleID for samples.


On 05 May 2014, at 15:24, Dröge, Gabriele <g.droege at BGBM.ORG<mailto:g.droege at BGBM.ORG>> wrote:

Hi everyone,

I guess there might have been some discussions about proper delimiter characters in the past that I have missed.

In several projects, first of all in GGBN (Global Genome Biodiversity Network, http://www.ggbn.org<http://www.ggbn.org/>), there is a need for making a decision now. We need to reference between different records and databases and within Darwin Core we want to use the relatedResourceID to do so.

During our GGBN workshop at TDWG last year we agreed on concatenating the traditional triple ID (Catalogue Number, Collection Code, Institution Code) and add further parameters if required too (e.g. GUID, access point). We have checked those parameters and can definitely not use a single character as delimiter.

So my question to you is, if there are already some suggestions on using two characters together as delimiters. It would be great if we could find a solution more than one community could agree on.

Otherwise I would like to open the discussion and suggest "\\", "||", "\|", "§|", "§§", or "\§".

Best wishes,
Gabriele Droege
Coordinator - DNA Bank Network
Global Genome Biodiversity Network (GGBN)
Berlin-Dahlem DNA Bank
Women's Officer ZE BGBM

Botanic Garden and Botanical Museum Berlin-Dahlem
Freie Universität Berlin
Koenigin-Luise-Str. 6-8
14195 Berlin

+49 30 838 50 139

tdwg-content mailing list
tdwg-content at lists.tdwg.org<mailto:tdwg-content at lists.tdwg.org>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.tdwg.org/pipermail/tdwg-content/attachments/20140505/8be41c7f/attachment.html 

More information about the tdwg-content mailing list