CollectBinaryToNary

Lets assume you have imported RDF to Wandora. RDF supports only binary relations. However, RDF allows you to pack multiple binary relations into a single entity that resembles n-ary association of topic maps. The trick is to use an intermediator between. BinaryAssociationTopicBreaker tool breaks n binary associations into a single association with n players. Number of association topics is reduced by one as the intermediator is not necessary any more. Examples:

           c
          /
  (a -- b) -- d      ==>     a - c - d - f   ,   [b]
          \
           f


           c
          /
  (a) -- b -- d      ==>     a - c - d - f   ,   [b]
          \
           f

  x  = topic
 [x] = topic x is removed
 (x) = topic x is in context
  x -- y = binary association between x and y
  x - y - z - k = 4-ary association between x, y, z, and k
 (x -- y) = association is in context

The tool is very useful to clean up not only RDF triplets but also CIDOC CRM data.

GUI name

• Break binary association topics

Tool Class

org.wandora.application.tools.associations.CollectBinaryToNary