Both people involved in a joint action intend to do their part and believe that the joint action includes their and the other person’s part. (See the text for a more formal and comprehensive definition.)
A level of visibility (in the cognitive-dimensions framework) at which any required subset of components can be viewed simultaneously. It is an essential requirement for certain cognitive strategies, such as design by modification of existing material, or for checking consistency of form across instances of similar components. See also visibility.