This paper describes an experiment to test the media space concepts developed at Rank Xerox EuroPARC in a “real world” setting, that is a distributed product development organization within a large multinational corporation. We installed two types of media space connections: a focused dial up video-phone for engineering problem solving between designers in England and the shop floor of a factor...

This study compared the effects of computer-mediated (CM) versus pen-and-paper (P&P) writing on written accuracy and feedback processing in tasks rewritten collaboratively following a pedagogical treatment two intact authentic classrooms. The involved 32 secondary education low-proficiency English-as-a-foreign-language (EFL) learners descriptive texts receiving in-class training identificat...

For over three decades, the benefits of focus have been touted under the guiding principle that dedicated attention to a small set of linked tasks improves operating performance. Numerous studies have suggested that the performance of a division, plant, or business unit is improved to the extent that it remains focused on a narrow range of activities. Others have found similar benefits associat...

The focusing theorem identifies a complete class of sequent proofs that have no inessential nondeterministic choices and restrict the essential choices to a particular normal form. Focused proofs are therefore well suited both for the search and for the representation of sequent proofs. The calculus of structures is a proof formalism that allows rules to be applied deep inside a formula. Throug...