User learning and performance with marking menus
CHI '94 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Dual touch: a two-handed interface for pen-based PDAs
UIST '00 Proceedings of the 13th annual ACM symposium on User interface software and technology
User perceptual mechanisms in the search of computer command menus
CHI '82 Proceedings of the 1982 Conference on Human Factors in Computing Systems
Evaluating WIMP Interfaces through the SUE Approach
ICIAP '99 Proceedings of the 10th International Conference on Image Analysis and Processing
CrossY: a crossing-based drawing application
ACM SIGGRAPH 2005 Papers
Depth and breadth away from the desktop: the optimal information hierarchy for mobile use
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
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This paper proposes Coupa, a novel pen interaction design to support operations of users on portable devices. The design arranges a plurality of labels on the interface, each of which has an identity. The user forms a coupling by linking two graphical items together, and thus performs an action dependent on the identities of the coupled items. During the course of operation, any item on the screen is ready for linking and coupling. To reduce mal-operations, two principles for linking are proposed, with their effectiveness proved in the usability tests. Compared with traditional systems with hierarchical menu structure and point-and-click interaction, the proposed design prominently improves the efficiency and accuracy of pen-based systems with enhanced usability.