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revision 1.138 by tjl, Sun Dec 1 10:46:00 2002 UTC revision 1.139 by tjl, Sun Dec 1 10:52:51 2002 UTC
# Line 156  any {\em fragment} of the item, instead Line 156  any {\em fragment} of the item, instead
156  % identity of the focused and connected documents and  % identity of the focused and connected documents and
157  % a more prominent target for tracking movement between views.  % a more prominent target for tracking movement between views.
158    
159    In the following sections, XXX Janne
160    
161  \section{Related work}  \section{Related work}
162    
# Line 251  The identity of data is an important con Line 252  The identity of data is an important con
252  most current computer systems have not been programmed to handle properly,  most current computer systems have not been programmed to handle properly,
253  and is usually not visualized at all: icons are used to represent different  and is usually not visualized at all: icons are used to represent different
254  file {\em types}, instead of the identities of the actual files.  file {\em types}, instead of the identities of the actual files.
255  Some systems (e.g. KDE) show previews of the files in the icons,  Some systems (e.g., KDE) show previews of the files in the icons,
256  which is useful but is not the same as showing the identity.  which is useful but is not the same as showing the identity.
257    
258  % The concept of ``file'', which was developed early in the history  % The concept of ``file'', which was developed early in the history
# Line 259  which is useful but is not the same as s Line 260  which is useful but is not the same as s
260    
261  For instance, consider a published scientific article  For instance, consider a published scientific article
262  available through several different URLs on the WWW,  available through several different URLs on the WWW,
263  e.g.~both through CiteSeer\cite{XXX}, the ACM portal and  e.g.,~through ResearchIndex\cite{XXX}, the ACM portal and
264  the author's web site.  the author's web site.
265  Now, when a user downloads and saves one copy, the relationship between  Now, when a user downloads and saves one copy, the relationship between
266  the local copy and the original on the WWW is severed, so  the local copy and the original on the WWW is severed, so
# Line 269  whereas the user thinks of them as the s Line 270  whereas the user thinks of them as the s
270  When following another link to the same article at a different  When following another link to the same article at a different
271  server, the computer has no idea that the article has already been downloaded  server, the computer has no idea that the article has already been downloaded
272  (from another server) by the user,  (from another server) by the user,
273  and that the user has annotated\cite{XXX} that version  and that the user has annotated that version
274  of the article.  of the article.
275  The burden of matching the identities and locating the local version, if desired, is on the user.  The burden of matching the identities and locating the local version, if desired, is on the user.
276    
277  In a system based on identities, all references to the article would be made through  In a system based on identities, all references to the article would be made through
278  the same identifier. The computer {\em would} know that this is a familiar article  the same identifier. The computer {\em would} know that this is a familiar article
279  and would also be able to show the user's annotations even in the above case;  and would also be able to show the user's annotations;
280  it would even be possible to show anyone else's published annotations and links  it would even be possible to show anyone else's published annotations and links
281  to the article.  to the article.
282    

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