锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#57;&#55;&#25104;&#20154;&#36164;&#28304;&#44;&#35270;&#39057;&#22312;&#32447;&#57;&#57;&#114;&#101;&#44;&#27745;&#35270;&#39057;&#32593;&#31449;&#20813;&#36153;&#22312;&#32447;&#35266;&#30475;</title><link>http://www.aygfsteel.com/eric_guoyi/</link><description>鎴戠殑鎶�鏈痓log</description><language>zh-cn</language><lastBuildDate>Wed, 18 Jun 2025 15:58:33 GMT</lastBuildDate><pubDate>Wed, 18 Jun 2025 15:58:33 GMT</pubDate><ttl>60</ttl><item><title>the conception of WAM (Workflow Authorization Model)</title><link>http://www.aygfsteel.com/eric_guoyi/archive/2005/10/20/16068.html</link><dc:creator>鍕ゅ瀛︿範</dc:creator><author>鍕ゅ瀛︿範</author><pubDate>Wed, 19 Oct 2005 17:42:00 GMT</pubDate><guid>http://www.aygfsteel.com/eric_guoyi/archive/2005/10/20/16068.html</guid><wfw:comment>http://www.aygfsteel.com/eric_guoyi/comments/16068.html</wfw:comment><comments>http://www.aygfsteel.com/eric_guoyi/archive/2005/10/20/16068.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/eric_guoyi/comments/commentRss/16068.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/eric_guoyi/services/trackbacks/16068.html</trackback:ping><description><![CDATA[<P>An authorization model for workflows named WAM that is capable of specifying authorizations in such a way that subjects gain access to requred objects only during the excution of the task.<BR><BR><FONT style="BACKGROUND-COLOR: #ffff00" color=#006400>The Goal :</FONT> to&nbsp; synchronize the authorization flow with the workflow.<BR><BR><FONT style="BACKGROUND-COLOR: #ffff00" color=#800080>The Approach</FONT>: associate an Authorization Template with each task, which allows appropriate authorizations to be granted only when the task starts and to revoke them when the task finishes.<BR><BR><FONT style="BACKGROUND-COLOR: #ffff00">The implementation</FONT>: A model of implementation based on Petri nets.<BR><BR><FONT style="BACKGROUND-COLOR: #ffff00">Tools :</FONT> A Petri net reprentation for conducting safety analysis since the safety problem in the authorization model is equivalent to the reachability problem in Petri nets.</P><img src ="http://www.aygfsteel.com/eric_guoyi/aggbug/16068.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/eric_guoyi/" target="_blank">鍕ゅ瀛︿範</a> 2005-10-20 01:42 <a href="http://www.aygfsteel.com/eric_guoyi/archive/2005/10/20/16068.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Hello , it's my first time to say something here, I am glad!</title><link>http://www.aygfsteel.com/eric_guoyi/archive/2005/02/18/1289.html</link><dc:creator>鍕ゅ瀛︿範</dc:creator><author>鍕ゅ瀛︿範</author><pubDate>Thu, 17 Feb 2005 16:28:00 GMT</pubDate><guid>http://www.aygfsteel.com/eric_guoyi/archive/2005/02/18/1289.html</guid><wfw:comment>http://www.aygfsteel.com/eric_guoyi/comments/1289.html</wfw:comment><comments>http://www.aygfsteel.com/eric_guoyi/archive/2005/02/18/1289.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/eric_guoyi/comments/commentRss/1289.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/eric_guoyi/services/trackbacks/1289.html</trackback:ping><description><![CDATA[Hello , it's my first time to say something here, I am glad!<img src ="http://www.aygfsteel.com/eric_guoyi/aggbug/1289.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/eric_guoyi/" target="_blank">鍕ゅ瀛︿範</a> 2005-02-18 00:28 <a href="http://www.aygfsteel.com/eric_guoyi/archive/2005/02/18/1289.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer>
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