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  <mainDescription>&lt;p>&#xD;
    When architecting a system, developing visual models of the architecture can be quite helpful as such models provide an&#xD;
    excellent high-level picture of the system, its &lt;a class=&quot;elementLink&quot;&#xD;
    href=&quot;./../../../core.tech.common.extend_supp/guidances/concepts/component_CB167D48.html&quot;&#xD;
    guid=&quot;_0YP18MlgEdmt3adZL5Dmdw&quot;>Component&lt;/a>s and their relationships. Specifically, you may find it useful to develop&#xD;
    these three Unified Modeling Language (UML) diagrams:&#xD;
&lt;/p>&#xD;
&lt;ul>&#xD;
    &lt;li>&#xD;
        &lt;strong>Layer map&lt;/strong> (represented as a class diagram using packages) that describes the upper-level layers of&#xD;
        the architecture&#xD;
    &lt;/li>&#xD;
    &lt;li>&#xD;
        &lt;strong>Deployment diagram&lt;/strong> (represented by a deployment diagram) that outlines the&amp;nbsp;expected network&#xD;
        topology&#xD;
    &lt;/li>&#xD;
    &lt;li>&#xD;
        &lt;strong>Key Abstractions diagram&lt;/strong> (represented by a class diagram) that shows the key&#xD;
        abstractions/components&amp;nbsp;and important relationships among them&#xD;
    &lt;/li>&#xD;
&lt;/ul>&#xD;
&lt;p>&#xD;
    For more information on visual modeling, see &lt;a class=&quot;elementLinkWithType&quot;&#xD;
    href=&quot;./../../../core.tech.common.extend_supp/guidances/guidelines/using_visual_modeling_DA1CA6E4.html&quot;&#xD;
    guid=&quot;_0SsecNr8EdyXE6np2_hUMA&quot;>Guideline: Using Visual Modeling&lt;/a>.&#xD;
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