19. groupware


What is meant by the terms control and feedback and feedthrough in the classification by function framework?

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Control and feedback is a two-way flow of information: control from participants to artefact; feedback from artefact to participants. Information can be communicated between participants.

Feedthrough is information passed indirectly from one participant to another through the manipulation of the artefact.

Answer should discuss the importance of these two as a form of indirect communication, using examples such as moving furniture or passing papers from person to person in a meeting. A good answer will compare them to more direct communication. Students can think of examples from domains they know about, for example, a car driver will see other drivers' signals (a form of direct communication), but also will observe their road position and infer their intentions (communication through the artefact).

Other exercises in this chapter

ex.19.1 (ans), ex.19.2 (ans), ex.19.3 (tut), ex.19.4 (tut), ex.19.5 (tut), ex.19.6 (tut), ex.19.7 (tut), ex.19.8 (tut), ex.19.9 (tut), ex.19.10 (tut), ex.19.11 (tut), ex.19.12 (tut), ex.19.13 (tut), ex.19.14 (tut), ex.19.15 (tut), ex.19.16 (tut), ex.19.17 (tut), ex.19.18 (tut), ex.19.19 (tut), ex.19.20 (tut)

all exercises for this chapter