From wrobel at pardus.de  Tue Feb  5 11:24:57 2008
From: wrobel at pardus.de (Gunnar Wrobel)
Date: Tue, 05 Feb 2008 11:24:57 +0100
Subject: why did you develop kolab xml format?
In-Reply-To: <200801232248.13511.thomas@koch.ro> (Thomas Koch's message of
	"Wed, 23 Jan 2008 22:48:13 +0100")
References: <200801232248.13511.thomas@koch.ro>
Message-ID: <873as7wvie.fsf@home.pardus.de>

Hi,

Thomas Koch <thomas at koch.ro> writes:

> Hi,
>
> I'm interested in groupware developing and just subscribed to ask you a 
> question. I couldn't find an explanation about your motivation not to use 
> vCard and vCal anymore, but to develop an XML format.

I think the original reasons were that vCal did not provide all the
functionaltiy to match the requirements to cope for the different
clients.

>
> Maybe you'd like to add this information to your wiki?

Yes, will add a reminder to do that once I did digg up the original
discussions.

Cheers,

Gunnar

>
> Thanks a lot,
>
> Thomas Koch
> http://www.koch.ro
>
> _______________________________________________
> Kolab-format mailing list
> Kolab-format at kolab.org
> https://kolab.org/mailman/listinfo/kolab-format

-- 
______ http://kdab.com _______________ http://kolab-konsortium.com _

p at rdus Kolab work is funded in part by KDAB and the Kolab Konsortium

____ http://www.pardus.de _________________ http://gunnarwrobel.de _
E-mail : p at rdus.de                                 Dr. Gunnar Wrobel
Tel.   : +49 700 6245 0000                          Bundesstrasse 29
Fax    : +49 721 1513 52322                          D-20146 Hamburg
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   >> Mail at ease - Rent a kolab groupware server at p at rdus <<                 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


From martin.konold at erfrakon.de  Wed Feb  6 02:20:43 2008
From: martin.konold at erfrakon.de (Martin Konold)
Date: Wed, 6 Feb 2008 02:20:43 +0100
Subject: why did you develop kolab xml format?
In-Reply-To: <873as7wvie.fsf@home.pardus.de>
References: <200801232248.13511.thomas@koch.ro> <873as7wvie.fsf@home.pardus.de>
Message-ID: <200802060220.46716.martin.konold@erfrakon.de>

Am Dienstag, 5. Februar 2008 schrieb Gunnar Wrobel:

Hi,

> > I'm interested in groupware developing and just subscribed to ask you a
> > question. I couldn't find an explanation about your motivation not to use
> > vCard and vCal anymore, but to develop an XML format.
>
> I think the original reasons were that vCal did not provide all the
> functionaltiy to match the requirements to cope for the different
> clients.

No, it was not about lack of functionality but for other reasons including but 
not limited to:

iCal and vCard standards are very complex, featureful, and offer a superset of 
overlapping functionality. (A typical multi-vendor standard).

They are difficult to parse and hard to extend. The later is especially 
importand if you intend to match the OL/Ex functionality 1:1.

Regards,
-- martin konold

-- 
e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
Sitz: Adolfstra?e 23, 70469 Stuttgart, Partnerschaftsregister Stuttgart PR 126
http://www.erfrakon.com/


From kloecker at kde.org  Sat Feb  9 12:33:39 2008
From: kloecker at kde.org (Ingo =?iso-8859-15?q?Kl=F6cker?=)
Date: Sat, 09 Feb 2008 11:33:39 -0000
Subject: why did you develop kolab xml format?
In-Reply-To: <200802060220.46716.martin.konold@erfrakon.de>
References: <200801232248.13511.thomas@koch.ro> <873as7wvie.fsf@home.pardus.de>
	<200802060220.46716.martin.konold@erfrakon.de>
Message-ID: <200802091233.16581@erwin.ingo-kloecker.de>

[Please note, that I'm not subscribed to this mailing list.]

On Wednesday 06 February 2008, you wrote:
> Am Dienstag, 5. Februar 2008 schrieb Gunnar Wrobel:
>
> Hi,
>
> > > I'm interested in groupware developing and just subscribed to ask
> > > you a question. I couldn't find an explanation about your
> > > motivation not to use vCard and vCal anymore, but to develop an
> > > XML format.
> >
> > I think the original reasons were that vCal did not provide all the
> > functionaltiy to match the requirements to cope for the different
> > clients.
>
> No, it was not about lack of functionality but for other reasons
> including but not limited to:
>
> iCal and vCard standards are very complex, featureful, and offer a
> superset of overlapping functionality. (A typical multi-vendor
> standard).
>
> They are difficult to parse and hard to extend. The later is
> especially importand if you intend to match the OL/Ex functionality
> 1:1.

FWIW: The IETF is forming a new working group to look at updates to the 
vCard format (RFC2426). (See attached message.)

I think you should join the working group for making sure that at least 
some of the short-comings of the vCard format you've observed are 
fixed.


Regards,
Ingo
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