<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi Bach,<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I took a look at your design for the supplemental ACL functionality. As I understand it,</DIV><DIV>you will create a new table named shm_userdis with an entry for every registered user that includes</DIV><DIV>the user's name and role_id. The role_id links to the shm_role table that associates id's</DIV><DIV>with specific roles. The role_id will also link to the shm_taskdis table, which</DIV><DIV>associates roles with specific functions. Then, in your code, for each function, you will</DIV><DIV>make a call to a check_permissions() function to determine whether that user has permission</DIV><DIV>to execute that function.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>If I've described it correctly here, this looks a perfectly reasonable design to me and I</DIV><DIV>say go for it. Trishan and Jon Damon may wish to weigh in on this as well. I'm CC'ing this</DIV><DIV>to the group as well, in case anyone else has suggestions.</DIV><DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>-- ram</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN> </DIV><BR><DIV><DIV>On Mar 29, 2007, at 4:58 PM, Bach Dao wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV class="Section1"><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">Dear Professor Moreilly,</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><O:P style="font-family: Calibri; font-size: 14.6667px; "><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; "> </SPAN></O:P></P><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">I am Bach from Wesleyan. As we said in the lecture last time, the Wesleyan Team is thinking of implementing an addition to the ACL system and we have written a sketch up of the solution and posted it in the Problem statement home work section in the web site. Maybe you can take a look and let us know.</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><O:P style="font-family: Calibri; font-size: 14.6667px; "><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; "> </SPAN></O:P></P><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">Bach Vu Dao</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">4306, 222 Church Street</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">Middletown Connecticut CT 06459</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; ">Cell: 860-759-4296</SPAN><O:P style="font-family: Calibri; font-size: 14.6667px; "></O:P></P><P class="MsoNormal"><O:P style="font-family: Calibri; font-size: 14.6667px; "><SPAN class="Apple-style-span" style="font-family: Calibri; font-size: 14.6667px; "> </SPAN></O:P></P></DIV><BR class="Apple-interchange-newline"></SPAN></BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>