]> 1 0 A required class. In the concept of a service mapping an input to an output, the sswap:Object corresponds to the output. The property sswap:mapsTo explicitly demarcates the mapping (or transformation) from an input to this output. One can also use sswap:mapsTo to describe inverse mappings where the stated relationship is *from* a sswap:Object to a sswap:Subject. Required predicates: <none> Optional predicates: mapsTo metadata