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<title>ARC Presentation: Grid Schema</title>
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<p><font size="5"> </font></p>
<p><strong><font color="#400080" size="6" face="Arial, Helvetica, sans-serif">Architecture</font></strong></p>
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<p><strong><font color="#FF6E2E" size="5" face="Arial, Helvetica, sans-serif">Challenges
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<ul>
<li><font size="5" face="Arial, Helvetica, sans-serif"><strong>Data Distributed
among disparate locations </strong></font>
<ul>
<li><font size="5" face="Arial, Helvetica, sans-serif">Storage issues </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Data Mining issues
</font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Control issues </font>
</ul>
<p> </p>
<li><font size="5" face="Arial, Helvetica, sans-serif"><strong>Authentication
Rules and Procedures </strong></font>
<ul>
<li><font size="5" face="Arial, Helvetica, sans-serif">Even if data is made
visible to users, how is access controlled? </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Some data should
be shared globally, now or in the future; other data must be controlled
to smaller populations. </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Who controls changes
to access lists for databases</font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Owners of data need
to maintain control and ownership while still sharing with communities.
</font>
<li><font size="5" face="Arial, Helvetica, sans-serif">How can we establish
a single sign-in? </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">How can we establish
a single portal? </font>
</ul>
<p> </p>
<li><font size="5" face="Arial, Helvetica, sans-serif"><strong>Tools are widely
distributed. </strong> </font>
<ul>
<li><font size="5" face="Arial, Helvetica, sans-serif">Local Cancer Centers
create new tools, yet there is no central repository for these tools.
</font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Since there is no
current method for sharing data, tools are frequently written for local
use. New data distribution methods will enable tools to become more widely
shared.</font>
<li><font size="5" face="Arial, Helvetica, sans-serif">How can we establish
a single sign-in for tool access? </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">How can we establish
a single portal for tool access?</font>
</ul>
<p> </p>
<li><font size="5" face="Arial, Helvetica, sans-serif"><strong>Computation resources
are widely and unevenly distributed.</strong></font>
<ul>
<li><font size="5" face="Arial, Helvetica, sans-serif">Resources are constrained
for high performance computing among all centers. </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">Existing computational
resources are not performing at 100% capacity. </font>
<li><font size="5" face="Arial, Helvetica, sans-serif">At any point there
are centers who need computational power and other centers who have power
available. </font><font face="Arial, Helvetica, sans-serif"> </font>
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