Subir,
Please
find inline replies.
Regards,
Ajoy
Along that line more data on XML will be better for
understanding which query
language is good for .21 IS . All along we have said that XML is a
candidate query lanaguage given the type of model
and
flexibility we need to support in .21 IS framework. It will be good
if you share some of your practical experience
and
related informtion on XML as well..
Ajoy-> I
think the attached link does
talk about performance issue associated with XML.
http://www.zapthink.com/report.html?id=ZAPFLASH-11162004
Personally I
have not done any work in the
XML performance analysis, but I have looked
at other
compression technologies and have
herd concerns raised about the
performance
impact of compression
mechanism such as SIP compression on mobile devices.
Also is it not
true that XML is already on the
mobile devices?
Ajoy-> At
least I am not aware of
availability of XML at L2, L2.5 and L3 protocol layer processing.
Typically
L2 and L2.5
processing is done by DSP and
I am not aware of any XML component in that. However.
I am aware
of the fact that WAP has used some
variation of XML also known WML. But it has NOT been considered
very
successful technology either. Also,
note that available channel for handover signaling may not be as much
as
available
data path for WAP.
.
My feeling is
that we
don't have enough data so
that we can say that XML is bad.
Ajoy->
See above link. Although above
link is not related to mobile devices, but definitely provides some
interesting
data about XML.
For example
it states that size of XML encoded
message can be 10 to 50 times bigger than binary encoded message.