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A narrative or story that describes the activities of one or more persons, including information about goals, expectations, actions, and reactions.
The graphic depiction of a PERT or CPM chart.
In the cognitive-dimensions framework, extra information in means other than formal syntax. Examples include layout in programs and circuit diagrams and penciled annotations on music. See the text for more details.
The “S” in GOMS, selection rules are the rules people use to choose between multiple methods that accomplish the same goal. They typically depend on characteristics of the task or user’s personal preferences or knowledge.
One of the foundations of nearly all mathematics and formalism in computing is the manipulation of sets (unordered collections of things) and functions.
One can plan to descend a set of rapids in a canoe, and one can plan and replan as one goes along, but one cannot (successfully) plan the descent and then merely execute the actions. Suchman, in her 1986 book “Plans and situated actions”, analyzed action as necessarily improvisational. Actions are undertaken in response to the constantly changing physical and social environment. An important consequence of this is to make plans and planning a resource for action, and not simply as the determinant of action.
A mental model derived from a text that represents what the text is about.
Movement through a problem space by applying a known operator at every state, from a known start state to a known end state. (see problem solving for a contrasting type of behavior).
A taxonomy of three qualitatively distinct levels of cognitive control. An expert human operator may exhibit any or all levels of cognitive control, depending upon the situation. This is not to be confused with models that describe stages of acquiring expertise or skill.
an error that occurs during action planning or execution when an appropriate system goal was selected