"Microsoft Access" for RDF?

I am looking at some cases where I have databases that are similar to
Dbpedia and Freebase in character,  sometimes that big (ok,  those
particular databases),   sometimes smaller.  Right now there are no blank
nodes,  perhaps there are things like the "compound value types" from
Freebase which are sorta like blank nodes but they have names,

Sometimes I want to manually edit a few records.  Perhaps I want to delete
a triple or add a few triples (possibly introducing a new subject.)

It seems to me there could be some kind of system which points at a SPARQL
protocol endpoint (so I can keep my data in my favorite triple store) and
given an RDFS or OWL schema,  automatically generates the forms so I can
easily edit the data.

Is there something out there?

-- 
Paul Houle
Expert on Freebase, DBpedia, Hadoop and RDF
(607) 539 6254    paul.houle on Skype   ontology2@gmail.com
http://legalentityidentifier.info/lei/lookup