The below table is an extended version of the table presented during my Graphics Interface 2002 talk in Calgary, and is a useful supplement to the paper. Please note that, although I have tried to make this table complete, it glosses over many subtle details, and is meant only as a rough indication of the tradeoffs between the 3 interaction techniques. (Michael McGuffin, May 2002) | Control Menu | FlowMenu | FaST Slider | --------------------+----------------+------------+---------------+ Rough/extremal | YES | YES | YES | assignment | | | | --------------------+----------------+------------+---------------+ Exact assignment | YES | YES | YES | --------------------+----------------+------------+---------------+ Inspection/ | | YES | YES | fine tuning | | | | --------------------+----------------+------------+---------------+ Scale independent | | | YES | selection marks (1) | | | | --------------------+----------------+------------+---------------+ Repositionable (2) | | | YES | --------------------+----------------+------------+---------------+ Only 1 click (3) | YES | YES | | --------------------+----------------+------------+---------------+ Supports 2D | YES | YES | | adjustment | | | | --------------------+----------------+------------+---------------+ Continous C:D | | YES | | control (4) | | | | --------------------+----------------+------------+---------------+ Additional controls | | YES | YES | can be added | | | | --------------------+----------------+------------+---------------+ Multiple instances | | | YES | can be posted | | | | --------------------+----------------+------------+---------------+ Easy to learn (5) | probably | ? | probably | --------------------+----------------+------------+---------------+ (1) - we feel this is important for supporting ballistic selection (2) - useful for avoiding hitting the edge of the screen during adjustment, and also for not obscuring data on the screen (3) - by "click", I mean a (press, release) pair, or a drag. (4) - achieved by moving closer to or farther from the centre of the "dial" (Updated May 2004:) This is described as an "automatic vernier effect" in section 3 of K. B. Evans, P. P. Tanner, and M. Wein, "Tablet-Based Valuators that Provide One, Two, or Three Degrees of Freedom", in Proceedings of SIGGRAPH 1981, pp. 91--97. (5) - more testing is required to better determine this