In the registration acknowledgement slip we can have barcodes printed.
http://www.eventbrite.com/ has that option , and it is also capable enough to manage pre-event registrations. ( their services would 
have an option of pre-payment and also it would be free for us . (Non profit organization ) )

workflow 1: Participants with pre-booking.
a. have the participant print out the acknowledgement slip with the bar code.
b. the moment they come at the registration desk. a person with a barcode reader scans his slip, matches to see if it is legitimate.
c. If it is legitimate , he is passed on to the next desk to collect the swags.

workflow 2: Walk - In participants ( The difficult part )
a. We have a second Queue, with another barcode reader , the walking participant hands over his ID card (Office id / College id )
    and has the barcode on it scanned. ( Most Id cards have bar codes ). ( Does anyone has an experience working with barcode readers ? different cards would have different format for storing the data )
b.1 If the card has barcode and the data is read correctly, he goes to the payment and swag collection counter.
b.2 if the card doesn't have a barcode or the data isn't read correctly , the participant has to register manually.



On Fri, Jul 2, 2010 at 12:21 AM, renuka prasad <renukaprasadb@gmail.com> wrote:


On Wed, Jun 30, 2010 at 11:17 PM, Noufal Ibrahim <noufal@gmail.com> wrote:
On Wed, Jun 30, 2010 at 9:46 PM, renuka prasad <renukaprasadb@gmail.com> wrote:
[..]
> not necessary , start registration at 8.30 or 9.00 , have more registration
> desks and close it just before keynote addressing and then open again ,

This is not really practical. We can't take all the stuff from the
desks, keep it somewhere and then come back again after they keynote.
it is possible , why we have to block our minds , there will be lot of options 
If the registration desk is opened, it should stay open till there are
no more people to register.

 
The traffic will spike around 10:00 am. That's when people will drop
in in large numbers. I think it's a given that the people who man the
registration desk will miss the keynote. It's not pleasant so i'd like
to make it as quick and less as possible.

quick means , more volunteers and less in number means -- thats left to how we want  it to be , do you think not allowing people to attend the keynote for those who have not registered is a good thing to do ,

 i think it should not be like that


Just because we have 50 student volunteers doesn't mean that we have
to needlessly make more work.

i bet students like to meet and talk to more people than anyone -- i bet on this , we have seen this happening since many years , so usually we leave these kind of things to them

of course taking their help is left to you
> otherwise few have to miss the key note and those might have to look into
> the recoded videos

Yeah. That's not a good thing. I'd like the number of people who miss
the keynote to be as small as possible.


good !! 
[..]

--
~noufal
http://nibrahim.net.in
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--
regards
-------
Kunal Ghosh
Dept of Computer Sc. & Engineering.
Sir MVIT
Bangalore,India

Blog:kunalghosh.wordpress.com
Website:www.kunalghosh.net46.net