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 ## Introduction
 * [FAIR principles @KM3NeT](pages/FAIR.md)
-* [The Open Data System](pages/infrastructure.md)
+* [The Open Data System](pages/Infrastructure.md)
+  * [KM3NeT Data Center](pages/KM3NeTserver.md)
+  * [Virtual Observatory](pages/VOserver.md)
+  * [Dataformats](pages/Dataformats.md)
 * Quickstart to KM3NeT data
-* Tutorials and examples
-  * [Courses and Webinars](pages/Courses.md)
-  * [Science use cases](pages/UseCases.md)
+  * [Python interface](pages/Python.md)
+* [Courses and Webinars](pages/Courses.md)
 
-## Open Data
+## KM3NeT data
 * KM3NeT data generation
   * [Detector and data taking](pages/Detector.md)
-  * data processing
-* Fields of science
-  * [Astrophysics](pages/Astrophysics.md)
-  * [Neutrino Physics](pages/Neutrinophysics.md)
+  * [Data processing](pages/Processing.md)
+* [Fields of science](pages/SciencesTargets.md)
+  * [Multimessenger](pages/Multimessengers.md)
   * [Sea Science](pages/SeaScience.md)
-* Accessing data
-  * KM3NeT Data Center
-  * Virtual Observatory
+* Example analyses
+  * [Astrophysics in the VO](pages/Usecase_ANTARES.md)
+  * [Unfiltered events](pages/Usecase_KM3NeT.md)
+  * [Environmental data](pages/Usecase_Environmental.md)
 
 ## Open Software
 * KM3NeT software
 
 ## Standards and Policies
 * Software publication
-  * Quality standards
+  * [Quality standards](pages/Softwaredevelopment.md)
   * Procedures
   * Guidelines
 * Data publication
-  * Quality standards
-  * Procedures
+  * [Quality standards](pages/Quality.md)
+  * [Procedures](pages/Procedures.md)
   * Guidelines
-* [Metadata](https://open-data.pages.km3net.de/datamodels/index.html)
+* [Metadata](pages/Datamodels.md)
 * [Copyright and Licensing](https://open-data.pages.km3net.de/licensing/)
+* Data publication
 
 ## [References](pages/References.md)