[QTI] "external" variables

[Steve Lay]

You can set the default value to something sensible in the item markup 
and then override this value from "outside" the item with a rule at the 
assessment level, when you refer to the item with an assessmentItemRef.

There isn't a way of overriding variables at assessment level, from even 
further "outside".  How far out do you want to go?  Are these values 
that relate to the context of the assessment, like the name of the 
candidate?  The time of day?  That sort of thing?

Steve

- -

Manolis Mavrikis wrote:
> Dear all,
> 
>   it's being a while since I did some work with QTI so apologies for the 
> question but I looked in archives and the spec and can't seem to find a 
> good answer to my question or a justification for the absence of the 
> following requirement.
> 
>   I am wondering if the spec itself or the requirements for delivery 
> engines define a way to allow the engine to send some parameters (e.g. 
> values for variables) to the item. That is, if there is a way to define 
> variables in some specific way that lets the engine know that it needs 
> to set a value to this variable.
> 
>   This is often needed if I require some combination of external input 
> required to adapt an exercise. As far as I understand this is not the 
> same as defining the variable and setting its value to NULL for example 
> because my engine wouldn't know that the exercise requires this value to 
> be set externaly.
> 
>   Thanks for your answer in advance,
> 
> Manolis
> 
> 
> 
>