Base URI and Default namespace

[actress]

In TopBraid when we define ontology in ontology overview form should
the Base URI and Default namespace be the same? I know that most of
the time they are the same with the only difference that Default
namespace has a "#" sign in the end.
But can they be totally different?
Thanks.

[Holger Knublauch]

Yes they can be totally different. In particular I recommend having no default namespace at all, and instead always use a prefix.

http://composing-the-semantic-web.blogspot.com/2007/05/default-namespaces-considered-harmful.html

Holger

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