Hartson, H. RexMayo, Kevin A.2013-06-192013-06-191994-03-01http://hdl.handle.net/10919/19867This paper is about modeling human-computer interaction for better understanding of interaction, leading to better designs and design representations. We argue for a structured approach to task abstractions that includes semantics, as well as a framework and vocabulary for abstraction. Our approach imposes a notational consistency that aids designer-implementer communication. Including semantic considerations allows designers to specify interaction so that implementers can properly support the connection between illusion and reality.application/postscriptenIn CopyrightTechnical reportTR-94-11http://eprints.cs.vt.edu/archive/00000393/01/TR-94-11.ps