Data accessible by VO clients must be declared in registry.

 NOTE Publishing a SaadaDB in a VO registry gives a lot of advantage but also requires some duties....

 Which registry to use. The choice of the registry you want to use to publish your database is not sensible because all registry harvest eachther so that all resources can be seen from any one. Below are 2 examples of open registries (we apologise for those we forgot)

• Europe : ESA
• USA : NVO

Both propose very useful help pages. The declaration of a resource is always 2 folds.

• Create an Authority : That is your VO profile.
• Declare your resource(s).

Multiple resources can be declared under the same authority