restrictions on web service linking?

David Woolley david at
Tue Nov 21 07:42:58 UTC 2006

> No, they are not derivative works.  However, the combination of my
> software with a database is a derivative work.  It alters the 1's and

The Free Software Foundation's interpretation that dynamic linking 
constitutes a derivative work is highly controversial.  At your level
of combination, even the FSF doesn't appear to believe that a
derivative work exists.   If there isn't a derivative work, you need
a correctly formed contract, not just the bare licence concept that
underlies most open source software (most commercial licence agreements
purport to be contracts, although there is some controversy in that area).

(It might be argued that performing rights are an issue there, and that
you can therefore impose conditions that you couldn't impose for mere use.)


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