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<title> Things service • Eclipse Ditto™ • a digital twin framework</title>
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<li><a href="release_notes_333.html">3.3.3</a></li>
<li><a href="release_notes_332.html">3.3.2</a></li>
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<a href="#"><span></span>Basic concepts</a>
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<a href="#"><span></span>Model entities</a>
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<a href="#"><span></span>Checking Permissions for Resources</a>
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<a href="#"><span></span>Signal types</a>
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<li><a href="basic-apis.html">APIs</a></li>
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<li><a href="basic-placeholders.html">Placeholders</a></li>
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