Re: Is there any COBOL program for verify the SSN?

"tlmfru" <lacey@[EMAIL PROTECTED]
> wrote in message 
news:m7GSj.111847$Ft5.106868@[EMAIL PROTECTED]
>
> Pete Dashwood <dashwood@[EMAIL PROTECTED]
> wrote in message
> news:680bovF2o8ao7U1@[EMAIL PROTECTED]
>>
>>
>> > A modulo-11 scheme, as you point out, sometimes generates a
check-digit
> of
>> > "X." That's why all modern check-digit methods use modulo-10 so that 
>> > the
>> > result is always numeric. Further, the only modulo-11 method in
common
> use
>> > that I know of is the ISBN (presently being phased out in the book
>> > industry).
>>
>> Is it being phased out?
>>
>> Having just completed my book on Project Management and waiting on
> proofing
>> and some initial reactions, I thought I better get an ISBN and do the
> legal
>> filing of two archive copies. I found out HOW to do this (in NZ it's
> really
>> pretty easy...) but I haven't done it yet.
>>
>> I know you're in the business so am interested in your opinion. I heard
>> something about them moving to a 13 digit ISBN but nothing about it
being
>> phased out. In fact, the consensus seemed to be that it is useful to
have
> if
>> you are writing a serious book.
>>
>> Any comment?
>>
>> Pete.
>
> AFAIK, there is no fixed size on the ISB #.  My own ISB has a prefix, a
> 7-digit publisher #, a 1 to n digit book number, and the check digit. 
My
> fourth book had the number 0-9699860-3-4 which is10, but there's no
limit
> that I know of.  A 3-digit prefix has been recently added (978).
>
> I have seen no hint anywhere that the ISB is being phased out.  I don't 
> see
> how it COULD be phased out given the billions of assigned numbers out 
> there.
>

Thanks Peter, very helpful.

Pete.
-- 
"I used to write COBOL...now I can do anything."