
104 Coverbal Synchrony in Human-Machine Interaction
by-product, but as an action-managing affect factor of companion
functionality. Sloman (2010) argues that the complexity of companion
features as such should be discussed, but so should the quality and
complexity of the requirements. His starting point is the presentation
of an illustration of possible interaction flows (world knowledge), with
which a companion can compare the respectively current behavior and
therefore knows “what they have done, what they could do, what they should
not do, why they should not do it, what the consequences of actions will be,
what further options could arise ...