Buxton, W., Chunking and phrasing and the design of human-computer dialogues, in Readings in humancomputer interaction: Towards the year 2000, R. Baecker, J. Grudin, W. Buxton, S. Greenberg., Editors. 1986, Morgan Kaufmann. p. 494-499.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....kinds of interaction discussed later. We hypothesize that using discrete light and firm pressure levels, instead of two distinct buttons, may well be easier in many circumstances for users to learn and or remember and perform. The foundation for this belief is an extension of Buxton s argument [2] that natural phrases in interaction should be delimited by muscular tension and relaxation, for example by holding a button down to initiate a gesture and releasing it to end the gesture. Establishing nested groupings of structures within phrases with the multiple levels of tension afforded by ....

William Buxton. Chunking and phrasing and the design of human-computer dialogues. In Information Processing '86 Proceedings of the IFIP 10th World Computer Congress, pages 475--480, 1986.

....finding the button, pushing it, holding it, but with the [se sors] it was justliste for the beC . Figure 7 shows our analysis of the workflow for voice reC rding; the sese geHP re se: s tobe te r support the use goal Record a message by naturally phrasingthe task into asingle cognitive chunk [2]. Normal Button Hold Sensor Based Gesture 1. Pick up device 2. Find the button 3. Position hand to press button 4. Press maintain tension 5. Listen for beep 7. Release button 8. Double beep confirms 1. Pick up device (to face) 2. Listen for click, beep 4. Relax device when done ....

Buxton, W., Chunking and Phrasing and the Design of Human-Computer Dialogues, IFIP'86, 475-480.

....perform this accumulation. This data is then passed to the path recognition subsystem to classify the path. A gesture is therefore defined as the path of the hand while the hand fingers remain stable in a recognized posture. The type of gesture chosen is compatible with Buxton s suggestion [6][7] of using physical tension as a natural criterion for segmenting primitive interactions: the user, starting from a relaxed state, begins a primitive interaction by tensing some muscles and raising its state of attentiveness, performs the interaction, and then relaxes the muscles. In our case, ....

Buxton WAS (1986), Chunking and Phrasing and the Design of Human-Computer Dialogues. In Information Processing. North Holland. Elsevier Science Publishers.

....stomach are independent subtasks which bear no relation to one another. There are many compound tasks, however, such as navigation and selection in a text document or positioning and scaling a rectangle, which users perceive as integral attributes [91] that are aspects of a single cognitive chunk [28]. When designed appropriately, a two handed interface for integral compound tasks does not necessarily impose a cognitive burden, and can help users to reason about their tasks. Figure 3.7 illustrates how the props based interface simplifies the compound task of selecting a cutting plane relative ....

....chunk) which directly corresponds to the task that the user has in mind. As a result, the user perceives the interface as being much easier to use. Figure 3.7 Task hierarchy for selecting a cut relative to a specific view. This framework, suggested by Buxton s work on chunking and phrasing [28], is useful for reasoning about the differences between one and two handed interfaces. With a unimanual interface, View and Cut would always have to be performed as purely sequential subtasks. There is also the need to switch back and forth between viewing and cutting, so this implies a third ....

Buxton, W., "Chunking and Phrasing and the Design of Human-Computer Dialogues," Information Processing `86, Proc. of the IFIP 10th World Computer Congress, pp. 475-480.

....the button, pushing it, holding it, but with the [sensors] it was just listen for the beep. Figure 7 shows our analysis of the workflow for voice recording; the sensed gesture seems to better support the user goal Record a message by naturally phrasing the task into a single cognitive chunk [2]. Normal Button Hold Sensor Based Gesture 1. Pick up device 2. Find the button 3. Position hand to press button 4. Press maintain tension 5. Listen for beep ################## 7. Release button 8. Double beep confirms 1. Pick up device (to face) 2. Listen for click, beep ....

Buxton, W., Chunking and Phrasing and the Design of Human-Computer Dialogues, IFIP'86, 475-480.

....finding the button, pushing it, holding it, but with the [se sors] it was justliste for the beC . Figure 7 shows our analysis of the workflow for voice reC rding; the sese geHP re se: s tobe te r support the use goal Record a message by naturally phrasingthe task into asingle cognitive chunk [2]. Normal Button Hold Sensor Based Gesture 1. Pick up device 2. Find the button 3. Position hand to press button 4. Press maintain tension 5. Listen for beep ################## 7. Release button 8. Double beep confirms 1. Pick up device (to face) 2. Listen for click, beep ....

Buxton, W., Chunking and Phrasing and the Design of Human-Computer Dialogues, IFIP'86, 475-480.

....is that users performed the three operations (translation, rotation and scaling) in parallel. That is, as the subjects were translating the square towards its final position, they would also rotate and scale the square at the same time. These atomic operations are combined and chunked together [1]. Comparison Using MacDraw Application The same matching tasks were then done using virtual objects and a stylus on a large, horizontal drafting table with a computer display projected on the writing surface. Using the MacDraw II program, subjects were asked to move a virtual object on top of a ....

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. Proceedings of the IFIP World Computer Congress. pp. 475-480.

....and on the actions executed are usually provided in VB2 applications to help the user understand system s behavior. VB2 s gesture recognition is subdivided into two main portions: posture recognition, and path recognition. The type of gesture chosen is compatible with Buxton s suggestion (Buxton, 1986)(Buxton, 1990) of using physical tension as a natural criterion for segmenting primitive interactions: the user, starting from a relaxed state, begins a primitive interaction by tensing some muscles and raising its state of attentiveness, performs the interaction, and then relaxes the muscles. In ....

Buxton WAS (1986) Chunking and Phrasing and the Design of HumanComputer Dialogues. In Information Processing. North Holland.

....perform this accumulation. This data is then passed to the path recognition subsystem to classify the path. A gesture is therefore defined as the path of the hand while the hand fingers remain stable in a recognized posture. The type of gesture chosen is compatible with Buxton s suggestion [6][7] of using physical tension as a natural criterion for segmenting primitive interactions: the user, starting from a relaxed state, begins a primitive interaction by tensing some muscles and raising its state of attentiveness, performs the interaction, and then relaxes the muscles. In our case, ....

Buxton WAS (1986), Chunking and Phrasing and the Design of Human-Computer Dialogues. In Information Processing. North Holland. Elsevier Science Publishers.

....exiting this constrained mode is controlled by a physical gesture (pressing the trajectory against the head prop) the user does not perceive this action as an explicit mode and the user cannot become trapped in the mode. The use of gestural phrasing has been advocated in previous work by Buxton [4]. The interior of the brain model can be selected by first bisecting the volume with the cutting plane to expose the contents of the volume, and then selecting a point on the exposed surface. Note that in this usage the plane not only exposes the interior of the data, but it also expresses ....

Buxton, W., "Chunking and Phrasing and the Design of Human-computer Dialogues," in Kugler, H. J., ed., Information Processing `86, Proc. of the IFIP 10th World Computer Congress, North Holland Publishers, 1986, pp. 475-480.

.... that require the user to click on an icon or perform a menu selection to change the behavior of the pointing devices) The additional degrees of freedom afforded by a twohanded interface can potentially simplify the syntax of required input actions and thus result in a simpler user interface [3]. In essence, the two handed interface allows users to think in terms of navigating the map, rather than strictly in terms of the atomic actions of panning or zooming. Using Buxton s cognitive chunking approach [3] a hierarchy of subtasks for map navigation is illustrated in Fig. 2 (right) ....

....the syntax of required input actions and thus result in a simpler user interface [3] In essence, the two handed interface allows users to think in terms of navigating the map, rather than strictly in terms of the atomic actions of panning or zooming. Using Buxton s cognitive chunking approach [3], a hierarchy of subtasks for map navigation is illustrated in Fig. 2 (right) Note that even performing just the Zoom subtask with a mouse is problematic because the mouse senses two continuous degrees of freedom, while continuous zooming requires three degrees of freedom (the scaling factor and ....

Buxton, W., "Chunking and Phrasing and the Design of Human-Computer Dialogues," Information Processing `86, Proc. of the IFIP 10th World Computer Congress, 1986, 475-480.

....example, to access the next page of the notepad the user can write N or n (for next ) To add a blank page, the user can write A , a or add and so on (Figure 7) One letter commands were chosen to accelerate their input. To distinguish between the notes and commands we use tense modes [15] i.e. the user holds down the button on the pen while writing a command. A different ink color (blue) is used to visually distinguish written commands from regular notes. After execution, the command disappears. 3.3 Design and implementation Virtual Notepad has been implemented using a custom ....

Buxton, W., Chunking and phrasing and the design of human -computer dialogues. Proceedings of IFIP World Computer Congress. 1986. pp. 475-480.

....is that users performed the three operations (translation, rotation and scaling) in parallel. That is, as the subjects were translating the square towards its final position, they would also rotate and scale the square at the same time. These atomic operations are combined and chunked together [1]. Comparison Using MacDraw Application The same matching tasks were then done using virtual objects and a stylus on a large, horizontal drafting table with a computer display projected on the writing surface. Using the MacDraw II TM program, subjects were asked to move a virtual object on top of ....

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. Proceedings of the IFIP World Computer Congress. pp. 475-480.

....to dragging (rotation angle and x, y rotation point) is almost instantly learned. We believe that no longer having to break these operations into discrete steps (move, specific pivot point, and rotate) contributes to our Input goal and reflects the notion of phrasing and chunking interactions [4]. Our Artwork and Focus goals are also contributed to by this design. In particular, rotation and setting the pivot point require no graphical objects, so screen space for artwork is conserved and in turn focus on the artwork is maintained since the user does not have to go to a graphical widget ....

....realistic real work conditions is not meaningful. However, it is important to note the types of evaluation besides user testing that have already occurred and their value. First, prior to the construction of T3 many of the individual input techniques used in T3 have been empirically evaluated [3, 4, 5, 7, 8, 10, 11] and have shown advantage. Second, artists participated in the design of T3, so user evaluation has been intrinsic in our design process (for example, the ability to directly and fluidly pan zoom rotate the artwork is derived directly from artist requests) Third, as UI designers we evaluated the ....

Buxton, W. (1986) Chunking and phrasing and the design of human-computer dialogues. Information Processing `86 Proceedings of the IFIP 10th World Computer Congress, 475-480.

....traditional interactors. For example, the tool in figure 2 selects both an operation to apply (change color) and an object to apply it to (the circle) in a single two handed gesture. This can save time and reduce cognitive load, because the user can combine more steps into a single mental chunk [6]. Initial user studies show performance improvements and user preference for click through tools [13] Toolglass sheets can be moved from application to application, providing a common interface to several applications. For example, the same button can be used to change the color of a shape in a ....

William Buxton. Chunking and phrasing and the design of human-computer dialogues. Proceedings of the IFIP World Computer Congress (Dublin, Ireland), 1986, pp. 475-480.

No context found.

Buxton, W., Chunking and phrasing and the design of human-computer dialogues, in Readings in humancomputer interaction: Towards the year 2000, R. Baecker, J. Grudin, W. Buxton, S. Greenberg., Editors. 1986, Morgan Kaufmann. p. 494-499.

No context found.

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. IFIP Conference. p. 475-480.

No context found.

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. IFIP Conference. p. 475-480.

No context found.

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. IFIP Conference. p. 475-480.

No context found.

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. Proceedings of the IFIP World Computer Congress, 475-480. Dublin, Ireland.

No context found.

Buxton, W. (1986). Chunking and phrasing and the design of human-computer dialogues. Proceedings of the IFIP World Computer Congress (Dublin, Ireland), 475-480.

No context found.

W. Buxton. Chunking and phrasing and the design of human-computer dialogues. In Proceedings of the IFIP World Computer Congress, pages 475--480, Dublin, Ireland, 1986.

No context found.

Buxton, W., "Chunking and Phrasing and the Design of Human-Computer Dialogues," Information Processing `86, Proc. of the IFIP 10th World Computer Congress, pp. 475-480.

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