1. Modelli di sviluppo collaborativi:
non solo software
Carlo Daffara
European Working Group on Libre Software
CloudWeavers
OpenSourceDay 2012
2. "The open source process violates every
principle of security. It welcomes everyone to
contribute to Linux. Now that foreign
intelligence agencies and terrorists know that
Linux is going to control our most advanced
defense systems, they can use fake identities to
contribute subversive software that will soon
be incorporated into our most advanced
defense systems.'" (Green Hills Software CEO,
Dan O'Dowd)
OpenSourceDay 2012
4. Percentuale di codice OSS nel pool complessivo
di codice creato negli ultimi 5 anni: 35%
OpenSourceDay 2012
5. WikiPedia: "Using it is like asking questions of a
bloke you met in the pub. He might be a nuclear
physicist. Or he might be a fruitcake". P. Valley,
The Independent
OpenSourceDay 2012
6.
7.
8. "In the study, entries were chosen from the
websites of Wikipedia and Encyclopaedia
Britannica on a broad range of scientific
disciplines and sent to a relevant expert for
peer review. Each reviewer examined the entry
on a single subject from the two
encyclopaedias; they were not told which
article came from which encyclopaedia. A total
of 42 usable reviews were returned out of 50
sent out, and were then examined by Nature's
news team.”
OpenSourceDay 2012
9. "Only eight serious errors, such as
misinterpretations of important concepts, were
detected in the pairs of articles reviewed, four
from each encyclopaedia. But reviewers also
found many factual errors, omissions or
misleading statements: 162 and 123 in
Wikipedia and Britannica, respectively."
[Nature, 2005]
“the Wiki resource had similar accuracy and
depth to the professionally edited database”
[Comparison of National Cancer Institute DB
with Wikipedia, 2010]
OpenSourceDay 2012
10. “Open source mapping certainly has its
benefits and can be extremely useful,
particularly for pedestrians and in city or town
centres. The way that the maps incorporate
input from a wide community of contributors
can result in impressive international coverage,
whilst also driving down costs of production.
However, when it comes to automotive-grade
mapping, open source has some quite serious
limitations, falling shor t on the levels of
accuracy and reliability required for
safe navigation.” [TomTom]
OpenSourceDay 2012
11. “By means of a variety of studies, we show that
the difference between the OSM street network
for car navigation in Germany and a
comparable proprietary dataset was only 9%
in June 2011. The results of our analysis
regarding the entire street network showed that
OSM even exceeds the information provided by
the proprietary dataset by 27%” [Heidelberg
U. 2011]
OpenSourceDay 2012