<nettime> questions to nettime

[David Gonzalez <douglasengelbart {AT} yahoo.es>]

I've  got a question seeking some kind of answer please..
 
does anybody know why there's such a mess with the terms
 
media arts
new media arts
digital art
interactive art
 
and also sometimes they all get mixed up into the art+science+technology area
as part of it....  
?
 
sometimes they are sinonimous, sometimes opposite, sometimes one fit inside
another, following a hierachy as some kind of order... but it seems that
everybody uses them differently..  

look at the unesco knowledge portal, even there there is a mess with the terms
as if it was all a disciplinar battle to conquer with its tradition the
art+science+technology experiences all around the globe..  

am i rigth or completely mixed up? 
does anybody know the differences or what is happening?
 
thanks for all,
david 
 
(maybe i'm asking simple questions but sometimes simple is harder than complex, i guess).

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