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#+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %4BEAMER_col(Col) %10BEAMER_extra(Extra)
#+INCLUDE: "prelude.org" :minlevel 1
#
# Some key design decisions we made, and why
#
* Quelques élements de conception
:PROPERTIES:
:CUSTOM_ID: main
:END:
** Le logiciel libre est essentiel
*** D. Rosenthal, EUDAT, 9/2014
:PROPERTIES:
:BEAMER_act: +-
:END:
#+latex: \begin{quote}
you have to do [digital preservation] with open-source software; closed-source
preservation has the same fatal "just trust me" aspect that closed-source
encryption (and cloud storage) suffer from.
#+latex: \end{quote}
*** recommendation
:PROPERTIES:
:BEAMER_act: +-
:END:
nous devons:
- publier tous les détais de notre architecture
- rendre disponible tout le logiciel que nous écrivons
- utiliser des standards ouverts
- encourager un processus de dévéloppement ouver et collaboratif
** Le liens web /ne sont pas/ permanents (même les /permalinks/)
*** T. Berners-Lee et al. Uniform Resource Locators. RFC 1738.
:PROPERTIES:
:BEAMER_act: +-
:END:
#+latex: \begin{quote}
Users should beware that there is no general guarantee that a URL
which at one time points to a given object continues to do so,
and does not even at some later time point to a different object
due to the movement of objects on servers.
#+latex: \end{quote}
*** The Decay and Failures of URL References
:PROPERTIES:
:BEAMER_act: +-
:END:
#+latex: \begin{quote}
la démi-vie d'une référence Web est de 4 ans\\
\hfill Diomidis Spinellis, CACM 2003
#+latex: \end{quote}
*** recommendation
:PROPERTIES:
:BEAMER_act: +-
:END:
nous devons:
- fournir des identifiants uniques /intrinséques/
- /éviter/ des approches basées sur des intermediaires comme le DOI
** La replication est essentielle
*** Thomas Jefferson, February 18, 1791
:PROPERTIES:
:BEAMER_act: +-
:END:
#+latex: \begin{quote}
...let us save what remains: not by vaults and locks which fence them
from the public eye and use in consigning them to the waste of time,
but by such a multiplication of copies, as shall place them beyond
the reach of accident.
#+latex: \end{quote}
*** recommendation
:PROPERTIES:
:BEAMER_act: +-
:END:
nous devons:
- faciliter la réalisation de copies de l'archive
- faire naître un réseau planétaire de miroirs
# *** replication, not confusion!
# :PROPERTIES:
# :BEAMER_act: +-
# :END:
# - do not create /another archive/ of SW, become a /mirror node/!
# - to ensure sustainability, pool resources, do not divide them!

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