A quantitative theory of human-computer interaction
Interfacing thought: cognitive aspects of human-computer interaction
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Getting into a system: External-internal task mapping analysis
CHI '83 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Mental models and problem solving in using a calculator
CHI '83 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Human Problem Solving
Applying Graph Theory to Interaction Design
Engineering Interactive Systems
When is system support effective?
Proceedings of the third symposium on Information interaction in context
Exploring the impact of search interface features on search tasks
ECDL'10 Proceedings of the 14th European conference on Research and advanced technology for digital libraries
Formalising an understanding of user-system misfits
EHCI-DSVIS'04 Proceedings of the 2004 international conference on Engineering Human Computer Interaction and Interactive Systems
Assessing use complexity of software: a tool for documentation designers
HCSE'12 Proceedings of the 4th international conference on Human-Centered Software Engineering
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To construct a conceptual model of a device, the user must conceptualize the device's representation of the task domain. This knowledge can be represented by three components: a device-based problem space, which specifies the ontology of the device in terms of the objects that can be manipulated and their interrelations, plus the operators that perform the manipulations; a goal space, which represents the objects in terms of which user's goals are expressed; and a semantic mapping, which determines how goal space objects are represented in the device space. The yoked state space (YSS) model allows an important distinction concerning the mental representation of procedures. If a step in a procedure specifies a transformation of the user's device space, then it has an autonomous meaning for the user, independent of its role in the sequence or method. The device space provides a figurative account of the operator. However, some operators do not affect the minimal device space, and their only meaning for the user derives from their role in a method: The method affords an operational account of the operator. Figurative accounts can be constructed from operational accounts only by elaborating the device space with new concepts. The YSS is illustrated through a simple description of a device model for a cut-and-paste text editor. Three experiments addressed the claims of this model. The first experiment used a sorting paradigm to show that users do acquire the novel device space concept of a string of adjacent characters (including space and return). The second and third experiments asked novices to make inferences about text editor behavior on the basis of simple demonstrations. They showed that (a) the availability of the string concept is critically dependent on the details of interface design, (b) figurative accounts of the copy operation afford more efficient methods and may be promoted by appropriate names for procedure steps, and (c) a conceptual model may transfer from one device to another. Together, the three experiments supported the YSS hypothsis.