[QTI] Newbie Question

[Niall Barr]

Hi,
 
As CJ said, When putting QTI into a database the QTI Schema is not
really a useful starting point - I assume that MS-SQL has a way or
serializing databases as XML, however the structure of that XML will be
very different from QTI. If I were putting QTI items into a database I'd
probably only extract metadata, and leave the rest in a single field -
possibly the variable declaration, presentation, processing and feedback
could be split into separate fields if you were binding the database
tightly to a QTI player. 
 
QTI (other than the Common Cartridge profile of QTI 1.2.1) doesn't
really have the concept of question types in quite the same way as
simpler systems - it is closer to being a way of describing questions.
In QTI 2.* there are 21 defined interaction types however, and the
examples supplied with the QTI 2.1 public draft specification cover all
but customInteraction and mediaInteraction. (I'm don't know why
mediaInteraction is missing.) 
 
Niall
 
________________________________

From: ims-qti-bounces at lists.ucles.org.uk
[mailto:ims-qti-bounces at lists.ucles.org.uk] On Behalf Of Sue Milne
Sent: 15 October 2009 10:02
To: IMS Question &amp, Test Interoperability
Subject: Re: [QTI] Newbie Question


Hi Bob,
 
Could I suggest that you go for QTIv2.1 rather than QTIv2.0?
 
Several teams are currently working on 2.1 implementations and the
differences in the assessmentItem parts of the spec are few.
 
The examples cover all the basic question types - see
http://www2.ph.ed.ac.uk/qtiv2/examples/V2examples.html which
demonstrates most of them and some other interesting examples including
our MathAssess collection.
 
Cheers
Sue


2009/10/15 Yuan Cheng Jiun <cjyuan at cse.cuhk.edu.hk>


	QTI XSD is very flexible, perhaps too flexible for the task you
want
	to accomplish.
	
	A QTI assessmentItem (question) can contain question data and
more.
	If needed, one can also embed in a question the logic to
interact
	with the user (i.e. how to provide feedbacks) and the logic to
	calculate score.
	
	Trying to import the QTI XSD into a relational database is like
	trying to import HTML XSD into a relational database.
	
	For the task you want to accomplish (transfering data from one
DB to
	another), I think it is easier for you to just customize a XSD
or
	use a subset of QTI XSD.
	
	Regards,
	CJ
	

	On Wed, 7 Oct 2009, Harris, B. wrote:
	
	> Hi
	>
	> I've recently joined the list having recently started looking
at some QTI based data. A couple of questions if anyone can advise:
	>
	> 1) We tried to use the QTI v2 XSD at
http://www.imsglobal.org/xsd/imsqti_v2p0.xsd to create tables in a SQL
database using the MS SQLXMLBULKLOAD function. We came across quite a
few errors that the SQLXMLBULKLOAD reported - for an example " Schema:
relationship expected on 'col'". Is this something that people have come
across or should it work (or not work) okay? Is there anything we need
to do to the schema to get the SQLXMLBULKLOAD to work? Has anyone
managed to create tables of the schema - any pointers as to how?
	>
	> 2) I notice on the http://www.imsglobal.org/question/ page
where we downloaded the XSD file from in the 'Version 2.0 -IMS XML
Examples and Schemas' section that there are a few xml examples. Does
this cover all the 'question' types in the xsd or are there more? Am I
right in understanding that the xsd file describes these xml files...and
a lot more? Basically, we're trying to deserialise some QTI v2 xml data
from a learning environment system (LE) so we can populate another
database with it. Our stumbling block is understanding how the xml is
structured (which is when we were pointed to the IMS site). We thought
about creating tables based upon the XSD (or in a roundabout fashion the
xml) so we can deserialise the LE xml. Are we barking up the wrong tree
with this. Could anyone provide an easier pointer if there is one? We're
very much a newbie at all this so would appreciate some advice.
	>
	> Many thanks for any advice offered
	>
	> Kind regards
	>
	> Bob
	>
	>
	> _______________________________________________
	> IMS-QTI mailing list
	> IMS-QTI at lists.ucles.org.uk
	> http://lists.ucles.org.uk/lists/listinfo/ims-qti
	>
	
	
	
-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=
-=-
	Phone: 2696 1284
	Office: Room 129, HSH Engineering Building
	Email: cjyuan at cse.cuhk.edu.hk
	Homepage: http://www.cse.cuhk.edu.hk/~cjyuan
	
-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=
-=-
	

	_______________________________________________
	IMS-QTI mailing list
	IMS-QTI at lists.ucles.org.uk
	http://lists.ucles.org.uk/lists/listinfo/ims-qti
	




-- 
Dr Sue Milne

Mobile: +44(0)7780995748

Consultant
ELandWeb Ltd
Registered Address:
54 Grampian Way
Bearsden
Glasgow
G61 4RW
Company Number: SC312309

-------------- next part --------------
An HTML attachment was scrubbed...
URL: /public/ims-qti/attachments/20091019/ea0be3ab/attachment.html