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Hi everyone,<br>
<br>
I've made some careful reading of the Creative Commons terms. While
the differences between CC-By and CC-By-SA remain somewhat fuzzy,
the interpretation of Mike Taylor sounds quite sensible: "my
understanding of the distinction between CC By and CC By-SA is now
that the former is viral only with respect to COPIES of the document
so licenced, whereas the latter is also viral with respect to
derivative works."<br>
<br>
So what can we do with a CC-By?<br>
<br>
1. Republish the original work under a stricter license or
traditional copyright: clearly no. That would certainly go against
the <i>No additional restriction</i> specification: "You may not
apply legal terms or technological measures that legally restrict
others from doing anything the license permits."<br>
<br>
2. Republish the original work under stricter license / copyright
with wide modifications: probably OK. We can deduce from the absence
of the Share Alike, that CC-By works can be redistributed under
other terms whenever one "remix, transform, or build upon the
material"<br>
<br>
2. Republish the original work under stricter license / copyright
with minor modifications: grey area. Minor modifications are
probably not enough to claim a transformative use.<br>
<br>
3. Make some data-mining with the original work: probably OK. Recent
jurisprudence showed that data-mining is a transformative use (see
the recent Google Books decision…)<br>
<br>
4. Republish the original work, yet within an innovative reading
frame: grey area. This is certainly transformative, although the
original work remains untouched.<br>
<br>
CC-By is, so far, not a simple license. While the legal mechanism is
sounder than I thought (with an efficient frame to guarantee the
preservation of the original license), it gives way to numerous
greay areas. The easier way is clearly to state that the original
work « was » in CC-By and links to the original version (which is no
more complicated than giving the credits to the original authors).<br>
<br>
PCL<br>
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