Bug#602781: Licenses for DAISY DTDS: ANSI/NISO Z39.86 Specifications for the Digital Talking Book
If you create your own DTDs and you have borrowed, even heavily from these, yes, you would be able to distribute the DTDs. I think 67 of the elements from dtbook dtds came from HTML.
However, one should not claim that modified versions conform to DAISY or NISO.
I have heard of companies who based a lot of internal work on the work DAISY and NISO did on these DTDs.
I want to remphasise the Z39.98 Standard, which was designed for modification and extensibility.
Best
George
-----Original Message-----
From: Don Armstrong [mailto:don@donarmstrong.com]
Sent: Saturday, September 13, 2014 3:48 PM
To: George Kerscher; 602781@bugs.debian.org
Cc: 'Mattia Rizzolo'
Subject: Re: Bug#602781: Licenses for DAISY DTDS: ANSI/NISO Z39.86 Specifications for the Digital Talking Book
On Sat, 13 Sep 2014, George Kerscher wrote:
> Many companies will copy and distribute these DTDs for use with their
> authoring or playback tools, which is perfectly fine. This may
> eliminate the need to go online for validation, etc. The working group
> may update the DTDs if errors are found and this will be announced
> publically. The DTDs were developed and highly influenced by HTML and
> Docbook.
>
> The DTDs may be modified for your use, but you may not claim that a
> modified version conforms to the DAISY Standard or the Niso Z39.86
> Standard. It is common for XML and DTD developers to borrow from
> various standards, and this is expected.
Thank you for your response. May the modified versions also be
distributed?
--
Don Armstrong http://www.donarmstrong.com
Never underestimate the power of human stupidity.
-- Robert Heinlein
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