[Sigia-l] Scanning (was: From multi-touch to multi-face?)

[Lee Hsieh]

>
> Will Parker wrote:
> What's the definition of 'CLI' in this case? None of the definitions  
> at www.acronymfinder.com seem to fit.
>   
...command line interface. although in the case of the phone model, it's 
not  a true cli as their are icons and such.
> I'm less concerned about the engineering problems than the user  
> experience. Does the user have to switch to a different physical face  
> of the phone, or is it just a different section of the normal  
> 'primary display' UI?
>   
In the case of mobile devices, how well alternate paths, errors so forth 
are handled on the software side also contribute to the user 
experience.  The interactions must factor in limations in signal 
strength, power levels and low resolution displys.  Within this context, 
the arcane error messages sometimes encoutered on Windows is unnacceptable.

In terms of the physical interactions for flip phones, the user switches 
from 'closed' mode to capture w/external camera via cli then opens to 
process.
> ...I'm interested in how one designs for  
> those cases where a task requires the user to leave one UI display  
> and physically move to another location to complete the task.
>   
I cant speak for other devices that do this but in the case of barcode 
scanning via cli, the instructions must be short, clear and to the point 
-- eg, ' scan complete, open phone to view results'
> Has there been any discussion of cam-phone users "stealing" content  
> by scanning it at the magazine stand instead of buying the magazine?
Not that i'm aware of.  Keep in mind the barcodes , which dont look like 
th striped ones in the U.S., are about 1-2" square and contain limited 
data.  They're meant to act as vehicles to exchange snippets of info or 
sample media types.  Now what's interesting is that there has been some 
talk  about holographic barcodes where different wavelengths of light 
can be scanned as seperate layers of data.  This would significantly 
increase the amount of data that could captured in the  same area.