[Psidev-ms-dev] Some comments on the mzML schema from today's call

[Randy J. <rkj...@in...>]

There are a couple of questions regarding the schema following today's
teleconference:

 

1.	spectrumDescription is currently marked as a required element,
but it has no required attributes, or sub-elements.  This should
probably be made optional if we keep the current optional status on all
the elements below it.
2.	The required attribute 'scanNumber' within <spectrum> seems
redundant with <scan> under spectrumDescription (maybe not - see my
comment below).
3.	Both scanNumber and msLevel have been moved far up in the
hierarchy and are required - they should be lower and msLevel should be
optional.

 

If we make a change to the <spectrum> element and remove scanNumber (and
use the element <scan> instead), and make msLevel either optional, or an
attribute or a cvParam somewhere, then we could use cvParams to name the
data vectors and allow for analog channels, UV channels and even PDA
data (I know, I sound like a broken record here).

 

Maybe I just missed something, but the original purpose of the
acquisitionList was to allow for a spectrum to be the sum or average of
a collection (list, ranges, etc) of individual spectra, each of which
has some of the attributes of the current <scan> element.  What is the
value in having both the <acquisition> element and the <scan> element?
Can they be combined?

 

Thanks,

Randy 

 

Randall K Julian, Jr. Ph.D.
President
Indigo BioSystems,  Inc.
(317) 536-2736 x101
(317) 306-5447 mobile

www.indigobio.com <http://www.indigobio.com/> 

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