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56 lines
2.3 KiB
56 lines
2.3 KiB
<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta name="generator" content=
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"HTML Tidy for Mac OS X (vers 31 October 2006 - Apple Inc. build 13), see www.w3.org" />
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<title>
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HyperText Design Issues: Notification of New Material
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</title>
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<nextid n="z5" />
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</head>
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<body bgcolor="#FFC060" text="#302005">
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<a href="OldDocs.html"><img src=
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"../Icons/WWW/arch1990" /></a>TimBL
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<hr />
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<h1>
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Notification of new material
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</h1>Does one need to bring it to a reader's attention when new
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unread material is added?
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<ul>
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<li>Asynchronously (e.g. by mail) when the update is made?
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</li>
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<li>Synchronously when he browses or starts the application?
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</li>
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<li>Under the control of the modifying author? (i.e. can I
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say whether my change is a notifiable change? - Yes)
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</li>
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</ul>How do you express interest - in a domain, in a node, in
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things near a node, in anything you have read already, etc? A
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<a name="1" href="Multiuser.html#3">separate web</a> which is
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stored locally, and logically overlay the public web?
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<p>
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There are two ways to make the connection between the
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modified material, and an interested person. One is, at the
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time of modification, to trace the interested parties. The
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other is, at some later time, for a daemon program (or a
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browser) to make a search for new things of interest to a
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given reader.
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</p>
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<p>
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This is an essential feature. I suspect that a mixture of the
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two techniques might be necessary. Efficient dating of nodes,
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and date-based searches provided by the server, could make it
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easier for the browser to find interesting things which are
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new. It should also be possible to create a mailing list of
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people interested in a given topic, and use it to mail
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announcements of change.
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</p>
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<p>
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This requirement is addressed by the <a name="z2" href=
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"../MarkUp/Relationships.html#z12">"Interested"</a>
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relationship of HTML, along with the <a name="z3" href=
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"../Protocols/HTTP/Methods/Post.html">POST</a> method of
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<a name="z4" href="../Protocols/HTTP/HTTP2.html">HTTP</a> for
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a generic notification semantics.
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</p>
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</body>
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</html>
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