[news.eclipse.modeling.m2m] What is the meaning of "mapsTo"?

[Matthias Bohlen <infomail@xxxxxxxxxx>]

Hi Dennis,

in some of your transformations, I see the keyword "mapsTo":

rule DurationInterval {
   from s : UML2!uml::DurationInterval (thisModule.inElements->includes(s))
   to t : UML2!uml::DurationInterval mapsTo s ( ... )
}

What does this keyword do?

Cheers
Matthias