uses platform This property, together with 'uses software', is probably best modelled as a child of has_part. Its current position in the property hierarchy is based on simplicity of use. 'uses platform' was deemed an appropriate addition (rather than making use of already extant has_part or 'uses software') due to the already present definitions of those classes which restrict their use to particular situations. Allyson Lister 'uses platform' should be used to link a particular piece of software to one or more operating systems which that software can run on. This is in contrast to both 'uses software' (which describes one piece of software directly executing another), and has_part, which can be used to describe related but independent software in a package, for example. software