on/core/"><strong>high-level description of the core model</strong></a>, and then continue as you like in these directions...</p>
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<p>For the more visually oriented or people who like diagrams, head to the <a href="specification/uml/"><strong>UML diagram</strong></a>.</p>
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<p>Whether or not you look at the diagram, see these <a href="specification/model-text/"><strong>class and relationship explanations by subject area</strong></a>, which also point to the related <a href="concepts/concep