Berlage, ThmoasSohlenkamp, Markus2020-06-062020-06-06364041999http://dx.doi.org/10.1023/A:1008608425504https://dl.eusset.eu/handle/20.500.12015/3543The idea of a “common artefact” is a useful metaphor for the design of CSCW systems. Our ACCT model of a common artefact describes structural elements that provide awareness about the work of others. The ACCT model identifies actors, contents, conversations, and tools as the central components of a common artefact, arranged on a shared background. The elements of a common artefact provide both a background visualization of the activity, but also permit dynamic notification of particular events. We explore this process of notification, which is composed of a selection and a presentation stage. We identify the critical factors of the process, in particular we highlight techniques related to temporal and spatial distortion. The framework helps to prepare design decisions of multi-user systems more consciously.awarenesscommon artefactCSCWdistortionnotificationstate presentationText/Journal Article10.1023/A:10086084255041573-7551