101 |
In several hypertext systems today, following a link means a *disruptive* change |
In several hypertext systems today, following a link means a *disruptive* change |
102 |
in the user's workflow, replacing the current context (e.g., a Web page) with an |
in the user's workflow, replacing the current context (e.g., a Web page) with an |
103 |
entirely different one. |
entirely different one. |
104 |
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This is partly caused by the dominant graphical user interface paradigm |
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.. A focus+context view [fc-fisheye]_ of bidirectional links |
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can provide a *gradual* change by showing fragments of link targets |
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before a link is followed, and fragments of link sources after |
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the link has been followed (if links are bidirectional). |
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This is diffucult to realize in the dominant graphical user interface paradigm |
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105 |
(developed in the 70s at Xerox PARC [XXX ref]) in which *pages* |
(developed in the 70s at Xerox PARC [XXX ref]) in which *pages* |
106 |
are shown in overlapping, rectangular, unconnected viewports (windows). |
are shown in overlapping, rectangular, unconnected viewports (windows). |
107 |
In this paradigm, following a link can only create a new window |
In this paradigm, following a link can only create a new window |
108 |
or replace the contents of the current window. |
or replace the contents of the current window. |
109 |
Alternatives, such as replacing part of text (XXX antont's reference; w3c link scopes), |
Alternatives, such as replacing part of text (XXX antont's reference; w3c link scopes), |
110 |
are not very popular nor intuitive... [XXXref] |
are not very popular nor intuitive. [XXXref] |
111 |
Improving user orientation through user interface improvements has |
Improving user orientation through user interface improvements has |
112 |
recently received much attention. |
recently received much attention. |
113 |
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114 |
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.. A focus+context view [fc-fisheye]_ of bidirectional links |
115 |
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can provide a *gradual* change by showing fragments of link targets |
116 |
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before a link is followed, and fragments of link sources after |
117 |
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the link has been followed (if links are bidirectional). |
118 |
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119 |
One approach is to display information about the destinations of the links. |
One approach is to display information about the destinations of the links. |
120 |
Browsers' status lines or tooltips show the URL or the HTML link title of the link |
Browsers' status lines or tooltips show the URL or the HTML link title of the link |
121 |
that the mouse is currently over. |
that the mouse is currently over. |