Presentation "The City of Paris and Open Source Software", by Jon Harper & Pierre Levy, Paris Open Source Summit 2017

1. O
SS
in
B
ig
Cities
The
case
of
Paris
PIER
R
E
LEV
Y
Softw
are
engineer
City
of
Paris
D
ECEM
B
ER
6TH
2017

2. What is the challenge for Big Cities
● Very large number of services (streets and public buildings
maintenance, culture, education, social, … )
● Many proprietary and vertical applications
● Software made for small cities frequently doesn’t fit large ones
● Software that doesn’t evolve as quick as the citizens expectations
● Low and decreasing budgets
● Perennial of investment, cost management
● Small internal IT teams
● Need to focus on few well known technologies
● Need of standardized architecture that can be largely replicated

3. The CASE of PARIS
A bit of history
● Paris was the first French public administration to release its
CMS platform LUTECE as Free Software in september 2002
● In 2008, Some big sites have choosen LUTECE such as the
French Weather Forecast (meteofrance.fr), the notaries
website (notaires.fr) or the City of Marseille
● Paris was a pioneer in Open Data in 2010 in France.
● In 2015, Paris joined the OW2 consortium and the April
association as an enterprise member.
● In 2016, LUTECE became an OW2 Mature Project.
https://projects.ow2.org/bin/view/lutece/

4. What is LUTECE
● A Content Management System (CMS)
● dynamic document model, publishing workflow,
searchengine, newsletter, forum, …
● A Java Enterprise Portal
● IT integration, business application, authentication
management
● A development framework
● Core services, many APIs, large set of plugins
● Code generator
● A set of ready to use plugins
● Several generic plugins can be assembled to deliver complex
services

5. Which domains are handled by OSS at Paris
● Democracy
● Participating Budget https://budgetparticipatif.paris.fr/
● Public consultation (plugin suggest)
https://github.com/lutece-platform/lutece-collab-plugin-suggest
● Information and communication
● Web Content Management https://www.parisclassenumerique.fr/
● CRM : Citizen (not Customer) Relationship Management
with privacy care https://moncompte.paris.fr/moncompte/
● Reporting problems
● Street problems https://teleservices.paris.fr/sira/
● Commons services
● Various Forms https://teleservices.paris.fr/k10/
● Appointments booking https://teleservices.paris.fr/rdvssvp/
● Taxes collection, Simulators, … http://simutax-voirie.paris.fr/
https://teleservices.paris.fr/locannonces/

6. LUTECE facts
● Over 500 plugins (246 hosted on GitHub)
● +300 commiters along 15 years,
● 1.6M LoC of Java
● 210 business applications, websites (www or intranet) and
online services running at the City of Paris
● More than 600 Lutece instance running (dev, test, integration,
production) into our data center
● 90% using MySQL/MariaDB – 10% PostgreSQL
● 98% on Apache Tomcat - 2% on Jboss
● 100% on Linux (Red Hat, Ubuntu & CentOS)
● 0 € of license

7. Why Open Source is a great
opportunity for Big Cities (1)
● Open Source lets you innovate
● Many libraries are available to build new services (machine
learning, chatbots, ...)
● 95% of startups are using Open Source
● Open Source lets you manage your architecture
● In France, for public orders, you can choose your Open
Source stack. It’s not allowed for proprietary software

8. Why Open Source is a great
opportunity for Big Cities (2)
● Open Source lets you manage your budget and your
investment
● It’s not necessarily cheaper but you can manage the effort to
fit your needs
● It’s more sustainable than a vendor that can disappear,
change its strategy or its prices. Many actors can do the job
and you are free to choose.

9. Why Open Source is a great
opportunity for Big Cities (3)
● Open Source lets you share
● All cities have the same needs
● Public money should only pay once
● You can reuse, contribute and build with others
● Open Source makes you better
● It lets you understand how things work
● It’s not only code sharing but knowledge sharing

10. DOCUMENTATION & RESOURCES
OW2 Site/Forge
https://projects.ow2.org/bin/view/lutece/
https://forge.ow2.org/projects/lutece
Official Web Site
http://fr.lutece.paris.fr/fr/ (French)
https://lutece-platform.github.io (English)
Demo Site (Nightly builds + Data reset every 3hours)
http://dev.lutece.paris.fr/site-demo
Docker images
https://hub.docker.com/u/lutece/
Dev
http://dev.lutece.paris.fr/
https://github.com/lutece-platform/
https://github.com/lutece-secteur-public/

11. Thank you
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@LuteceNews https://github.com/lutece-
platform