231 |
allow more context to be shown but also induce |
allow more context to be shown but also induce |
232 |
usability issues that need to be solved. |
usability issues that need to be solved. |
233 |
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|
234 |
One of the most important tasks in maintaining user orientation |
One of the most important tasks in maintaining user orientation |
235 |
is good layout and non-disruptive, fluid animation between views. |
is good layout and non-disruptive, fluid animation between views. |
236 |
- irregu, nadir, buoys, etc. |
- irregu, nadir, buoys, etc. |
252 |
provided by the controller that can be theoretically modeled and experimentally |
provided by the controller that can be theoretically modeled and experimentally |
253 |
tested. |
tested. |
254 |
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|
255 |
The hardware algorithm for rendering the unique background textures |
The hardware algorithm for rendering the unique background textures |
256 |
currently uses ad hoc distributions in |
currently uses ad hoc distributions in |
257 |
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|
258 |
|
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Usability testing |
|
|
''''''''''''''''' |
|
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|
|
|
One of the basic principles of the Fenfire user interface is continuity. |
|
|
Continuity helps the user to perceive the interface as cognitively |
|
|
coherent - things are related to each other, not disconnected. This |
|
|
reduces load in the user's working memory. |
|
|
|
|
|
Some of the ideas aiming to maintain continuity in the Fenfire user |
|
|
interface (such as focus-context) have been proved to be efficient by |
|
|
earlier researchers. Several ideas presented here are, however, genuinely |
|
|
new and thus need to be subjected to rigor experimenting and testing. We |
|
|
plan to test the usability of the ideas first in basic cognitive tasks |
|
|
before implementing and testing them in a larger context. |
|
|
|
|
|
The first-phase experiments include tasks varying from very simple |
|
|
perceptual tasks (such as visual search and recognition) to more complex |
|
|
problem-solving tasks. The experiments will be conducted with about ten |
|
|
naïve participants per experiment. The data will include response times |
|
|
and error rates of the participants. In addition, surveys or short |
|
|
interviews can be used to collect the personal opinions of the |
|
|
participants about the tested idea. |
|
|
|
|
|
For example, fillets are designed to enhance perceivability of visual |
|
|
connections between interface elements. Fillets have been tested in a |
|
|
controlled experiment, showing that fillets do facilitate recognizing |
|
|
certain visual structures in a collection of visual items and their |
|
|
interconnections, compared to more common implementations. In the next |
|
|
phase, fillets will be tested in a more realistic situation requiring the |
|
|
user to trace visual connections between information items. |
|
|
|
|
|
Textured backgrounds implement continuity by providing unique, permanent |
|
|
visual context for interface elements to facilitate search and recognition |
|
|
of the elements in prolonged use. Textures will be tested to show that the |
|
|
user can implicitly memorize textures during interaction with the |
|
|
interface elements and use this information to recognize the elements |
|
|
faster and more accurately. We will also conduct readibility tests on |
|
|
textures to show that a textured background of text does not necessarily |
|
|
impair either the legibility or the readability of the text. |
|
|
|
|
|
Finally, we will carry usability tests on a simulated interface, in which |
|
|
several ideas are implemented simultaneously. The users will be observed |
|
|
in realistic use situations. Behavioral data will be gathered in verbal |
|
|
protocols, videotaping, and surveys. |
|
|
|
|
|
|
|
|
- fillets more general testing |
|
|
- paper distributions (color, etc.) |
|
|
- irregu? |
|
|
- controllers |
|
|
- "stress-testing"? |
|
|
|
|
|
|
|
|
|
|
259 |
|
|
260 |
Structure and storage |
Structure and storage |
261 |
''''''''''''''''''''' |
''''''''''''''''''''' |
303 |
in fixed ways but multiple, really simple things that can be used with |
in fixed ways but multiple, really simple things that can be used with |
304 |
imagination. |
imagination. |
305 |
|
|
|
- modeling properties of visual perception |
|
306 |
|
|
307 |
- "stress-testing" hypothesis? |
User interfaces |
308 |
|
''''''''''''''' |
309 |
|
|
310 |
|
Most of the new user interface tehcnologies are based on |
311 |
|
modeling properties of human visual perception and cognition. |
312 |
|
|
313 |
|
One of the basic principles of the Fenfire user interfaces is continuity. |
314 |
|
Continuity helps the user to perceive the interface as cognitively |
315 |
|
coherent - things are related to each other, not disconnected. This |
316 |
|
reduces load in the user's working memory. |
317 |
|
|
318 |
|
Usability testing |
319 |
|
''''''''''''''''' |
320 |
|
|
321 |
|
Some of the ideas aiming to maintain continuity in the Fenfire user |
322 |
|
interface (such as focus-context) have been proved to be efficient by |
323 |
|
earlier researchers. Several ideas presented here are, however, genuinely |
324 |
|
new and thus need to be subjected to rigor experimenting and testing. We |
325 |
|
plan to test the usability of the ideas first in basic cognitive tasks |
326 |
|
before implementing and testing them in a larger context. |
327 |
|
|
328 |
|
The first-phase experiments include tasks varying from very simple |
329 |
|
perceptual tasks (such as visual search and recognition) to more complex |
330 |
|
problem-solving tasks. The experiments will be conducted with about ten |
331 |
|
naïve participants per experiment. The data will include response times |
332 |
|
and error rates of the participants. In addition, surveys or short |
333 |
|
interviews can be used to collect the personal opinions of the |
334 |
|
participants about the tested idea. |
335 |
|
|
336 |
|
For example, fillets are designed to enhance perceivability of visual |
337 |
|
connections between interface elements. Fillets have been tested in a |
338 |
|
controlled experiment, showing that fillets do facilitate recognizing |
339 |
|
certain visual structures in a collection of visual items and their |
340 |
|
interconnections, compared to more common implementations. In the next |
341 |
|
phase, fillets will be tested in a more realistic situation requiring the |
342 |
|
user to trace visual connections between information items. |
343 |
|
|
344 |
|
Textured backgrounds implement continuity by providing unique, permanent |
345 |
|
visual context for interface elements to facilitate search and recognition |
346 |
|
of the elements in prolonged use. Textures will be tested to show that the |
347 |
|
user can implicitly memorize textures during interaction with the |
348 |
|
interface elements and use this information to recognize the elements |
349 |
|
faster and more accurately. We will also conduct readibility tests on |
350 |
|
textures to show that a textured background of text does not necessarily |
351 |
|
impair either the legibility or the readability of the text. |
352 |
|
|
353 |
|
Finally, we will carry usability tests on a simulated interface, in which |
354 |
|
several ideas are implemented simultaneously. The users will be observed |
355 |
|
in realistic use situations. Behavioral data will be gathered in verbal |
356 |
|
protocols, videotaping, and surveys. |
357 |
|
|
358 |
|
.. - fillets more general testing |
359 |
|
- paper distributions (color, etc.) |
360 |
|
- irregu? |
361 |
|
- controllers |
362 |
|
- "stress-testing"? |
363 |
|
|
364 |
|
|
365 |
Timetable for the objectives |
Timetable for the objectives |