/[fenfire]/journals/plans/SA_2003.rst
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revision 1.116 by tjl, Wed May 14 09:35:26 2003 UTC revision 1.117 by jvk, Wed May 14 09:41:40 2003 UTC
# Line 290  Research methods in general Line 290  Research methods in general
290  Mathematical modeling  Mathematical modeling
291  '''''''''''''''''''''  '''''''''''''''''''''
292    
293    Most of the new user interface tehcnologies are
294    motivated by perceptual aspects.
295    
296    For example, fillets are designed to enhance perceivability of visual
297    connections between interface elements.
298    
299    
300    One of the basic principles of the Fenfire user interfaces is continuity.
301    Continuity helps the user to perceive the interface as cognitively
302    coherent --- things are related to each other, not disconnected. This
303    reduces load in the user's working memory.
304    
305    Therefore, the
306    
307    modeling properties of human visual perception and cognition.
308    
309    
310  JVK, HH  JVK, HH
311    
312  For text filtering and ...  For text filtering and ...
# Line 305  Usability experiments Line 322  Usability experiments
322    
323  JVK, HH  JVK, HH
324    
 Most of the new user interface tehcnologies are based on  
 modeling properties of human visual perception and cognition.  
   
 One of the basic principles of the Fenfire user interfaces 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.  
   
325  Some of the ideas aiming to maintain continuity in the Fenfire user  Some of the ideas aiming to maintain continuity in the Fenfire user
326  interface (such as focus-context) have been proved to be efficient by  interface (such as focus-context) have been proved to be efficient by
327  earlier researchers. Several ideas presented here are, however, genuinely  earlier researchers. Several ideas presented here are, however, genuinely
# Line 328  and error rates of the participants. In Line 337  and error rates of the participants. In
337  interviews can be used to collect the personal opinions of the  interviews can be used to collect the personal opinions of the
338  participants about the tested idea.  participants about the tested idea.
339    
 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.  
   
340  Finally, we will carry usability tests on a simulated interface, in which  Finally, we will carry usability tests on a simulated interface, in which
341  several ideas are implemented simultaneously. The users will be observed  several ideas are implemented simultaneously. The users will be observed
342  in realistic use situations. Behavioral data will be gathered in verbal  in realistic use situations. Behavioral data will be gathered in verbal
# Line 463  there is no real-world analogue. Line 455  there is no real-world analogue.
455  Fillets  Fillets
456  '''''''  '''''''
457    
 TJL  
   
 Foo  
   
 Goals???  
   
458  Filleting, or rounding corners of surfaces, is  Filleting, or rounding corners of surfaces, is
459  used in mechanical engineering to improve  used in mechanical engineering to improve
460  the properties of cast objects.  the properties of cast objects.
# Line 483  e.g.~Focus+Context views or views where Line 469  e.g.~Focus+Context views or views where
469  are informative, fillets can clarify the relationships considerably without  are informative, fillets can clarify the relationships considerably without
470  altering the layout.  altering the layout.
471    
472    Fillets have been tested in a
473    controlled experiment, showing that fillets do facilitate recognizing
474    certain visual structures in a collection of visual items and their
475    interconnections, compared to more common implementations. In the next
476    phase, fillets will be tested in a more realistic situation requiring the
477    user to trace visual connections between information items.
478    
479    XXX
480    
481  Our earlier reseach has shown that filleting significantly  Our earlier reseach has shown that filleting significantly
482  improves the perceivability of certain graph layouts.  improves the perceivability of certain graph layouts.
483  We plan to obtain experimental justification and  We plan to obtain experimental justification and
# Line 493  Generalizing filleting to three dimensio Line 488  Generalizing filleting to three dimensio
488    
489      - quantitative experimental results from general graphs layout      - quantitative experimental results from general graphs layout
490    
491    Goals???
492    
493  Text filtering  Text filtering
494  ''''''''''''''  ''''''''''''''
495    
# Line 561  algorithm for generating unique textures Line 558  algorithm for generating unique textures
558    
559      - quantitative model of certain aspects of texture perception and recognition      - quantitative model of certain aspects of texture perception and recognition
560    
561    XXX:
562    
563    Textured backgrounds implement continuity by providing unique, permanent
564    visual context for interface elements to facilitate search and recognition
565    of the elements in prolonged use. Textures will be tested to show that the
566    user can implicitly memorize textures during interaction with the
567    interface elements and use this information to recognize the elements
568    faster and more accurately. We will also conduct readibility tests on
569    textures to show that a textured background of text does not necessarily
570    impair either the legibility or the readability of the text.
571    
572    
573  Controllers  Controllers
574  '''''''''''  '''''''''''
575    

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