A thought on MCE Best Practices

[Arms, Caroline]

All,

I have one immediate set of thoughts about the MCE Best Practices document - which goes back to the topic of embedding rich metadata in OOXML packages.  I'm attaching what I believe to be the last email (from Francis) on that topic.  Francis's email points out that LibreOffice does not preserve foreign parts (or the version he tried didn't).  Is the Best Practices document intended to encourage LibreOffice to preserve them?

Has using rich XML metadata been considered as a second example of a foreign part?  I would very much like to see that added.  ONIX (as used by Francis) is a good example for a DOCX document.  ISO 19139 (Geographic Information - Metadata - XML schema implementation) might be appropriate for an XLSX document.

  Have fun in Beijing!

  Caroline

Caroline Arms
Library of Congress Contractor
Co-compiler of Sustainability of Digital Formats resource    http://www.digitalpreservation.gov/formats/

** Views expressed are personal and not necessarily those of the institution **

From: Francis Cave [mailto:francis at franciscave.com]
Sent: Thursday, August 21, 2014 11:26 AM
To: e-SC34-WG4 at ecma-international.org
Subject: WML document containing metadata as a foreign part

Further to discussion on today's WG4 telecon, I attach a WML file in which I have embedded some ONIX metadata - see docProps/onix.xml - which is one of the metadata examples mentioned by Murata-san.

In _rels/.rels I have added:

<Relationship Target="docProps/onix.xml" Type="http://www.example.com/relationships/foreign-metadata" Id="rId4">

If I open the document in MS Office (Word 2013), then save it, the foreign part and associated Relationship are preserved.

However, if I open the same document in LibreOffice, then save it (in WML format), the foreign part and associated Relationship are dropped.

So we cannot recommend this approach without making it clear that consuming applications may choose to ignore such foreign parts.

Francis
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