Am 19.04.10, 11:17 -0400 schrieb Leonard Rosenthol:
On Mon, Apr 19, 2010 at 11:00 AM, Kai-Uwe Behrmann <[email protected]> wrote:
Someone else tries to implement spectral data handling with the XML based
CxF format [1] for Oyranos. The documentation of CxF3 comes with a schema.
The CxF schema license is incompatible with open source.
As the ISO committee responsible for CxF is meeting tomorrow, can you please
explain (in as much detail as possible) what is wrong with the license for
the schema? I will be happy to bring it up for discussion and get it fixed.
CxF3 License page 2 (top left):
"... consistent with the
Documentation (the "License"), provided that the
Software is accepted, adopted, presented and
used in its entirety without modification.
"
OSI The Open Source Definition paragraph 3 Derived Works:
"The license must allow modifications and derived works, and must allow them
to be distributed under the same terms as the license of the original software.
"
CxF3 License page 4 (top left) 11.3 Effect of Termination:
" 11.3 Effect of Termination. Upon
termination of this License Agreement for any
reason, Licensee will immediately: 1) cease its
reproduction, publicly display, public performance,
use, importation and distribution of the Software,
Documentation and Derivative Works, 2) cease the
"
This might not be possible at all for widely distributed and hosted
software as open source is.
There might be more incompatibilities.
I have sent this infos before to Raymond Cheydleur.
I will point out that v3 is still in development - the current standardized
version of CxF is v2. Does the v2 schema, as distributed by the ISO, have
the same issue?
The licenses of CxF2 and CxF3 are identical in the according packages.
My question is,
Can a XML based format be properly implemented without the accompanying
schema? Would it render a great disadvantage to be not able to use and
distribute the available schema because of license issues? E.g. having the
XML Namespace refering to a URL with non redistributeable content.
The schema is only necessary if you wish to validate that the XML conforms
to the grammar.
Leonard
Well format conformance is one of the weak points with many CGATS files.
So I would guess validation is one of the interessting properties of the
new format.
kind regards
Kai-Uwe Behrmann
--
developing for colour management
www.behrmann.name + www.oyranos.org
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