1. Delft3D – Open Source
P. Witlox
May 16, 2011

2. Content
• About Deltares
• About me
• What is Delft3D
• Demo
• Business cases
• Integrated environment for users
• Liferay
• Overall experiences with the portal
• Key metrics
• Challenges
• Questions
May 16, 2011

3. About Deltares
• Leading, independent, Dutch-based research institute.
• Specialist consultancy for matters relating to water, soil and the
subsurface.
• Advanced expertise to help people live safely and sustainably in
delta areas, coastal zones and river basins.
• Research and provide specialist advisory services for government
authorities and the corporate sector in The Netherlands and
globally.
• Deltares has more than 800 employees.
• We are based in Delft and Utrecht.
May 16, 2011

4. About me
• Pim Witlox
• 29 years old
• Live and work in Delft
• IT-related work for c.a. 10 years (software development, project
management, team leader)
• Delft3D – open source; technical project leader
May 16, 2011

5. What is Delft3D
Delft3D is software meant for creating and executing hydrologic models.
Hydrologic models are simplified, conceptual representations of a real
world hydrologic system, such as the Rhine.
Delft3D was created roughly 20 years ago, and since that time it has evolved
into software with the following characteristics:
• 3D modeling environment:
• Hydrodynamics
• Sediment transport
• Morphology
• Water quality
• For
• Fluvial environments
• Estuarine environments
• Coastal environments
May 16, 2011

6. Demo
May 16, 2011

7. Business Cases
1. Sharing knowledge
Deltares can share the knowledge contained in the Delft3D
source code with others, and people outside of Deltares can
now contribute their knowledge in the source code.
1. Lowering thresholds and increasing usage
By releasing the software, people can use it immediately without
first having to buy it. Also an increasing amount of R&D
projects require open source licensing. This will result in a
larger community and increased usage of the software.
1. Concurrency
By removing the licensing, it’s less difficult to run simulations on
clusters and it can be used in larger projects.
May 16, 2011

8. Integrated environment for users
Sharing knowledge
• Easy access
• Ease of use
• Easy to find
• Easy to contribute
Lowering thresholds and increasing usage
• Easy access
• Ease of use
• Community oriented
• Scalable
Concurrency
• Information provisioning
• Scalable
May 16, 2011

9. Liferay
System requirements for community provision;
• Support user work flow
• Unified user interface
• Easily integrated with third-party systems
• Search optimized
• Community oriented
• Scalable
Business requirements for community provision;
• Cost
• Open
• Scalable
May 16, 2011

10. Overall experiences with the portal
User perspective:
• Good look and feel
• Easy to use
Moderator perspective:
• Easy to modify content
• Good overview
Technical perspective:
• Highly adaptive
• Scalable
• Easy to integrate with other systems
May 16, 2011

11. Key metrics
Since 5 april 2011 :
• 893 visits from 44 countries/territories
• 1,706 pageviews
• 1.91 pages/visit
• 00:02:31 avg. time on site
• 3 mobile visits
• 130 unique source code downloads
Goals for the source code this year:
• 250 unique downloads
• 5 unique external contributions
May 16, 2011

12. Challenges
• Getting the developer work flow up and running
• Complex work flow
• 4 external systems needed to have full work flow
• Migrating existing communities to the new environment
• Planning/resources
• “Complete” system
• Topic specific content
• When to create new groups
May 16, 2011

13. Questions
http://oss.delft3d.nl
May 16, 2011