<div class="chartlet-wrapper"><style>.chartlet-stage{position:relative;display:inline-block;max-width:100%;vertical-align:top}.chartlet-stage>svg{display:block}.chartlet-hotspot{position:absolute;border-radius:8px;cursor:pointer}.chartlet-focus{margin:0 0 12px 0;font-size:13px}.chartlet-focus summary{cursor:pointer;min-height:24px}.chartlet-focus fieldset{border:none;padding:0;margin:4px 0 0 0}.chartlet-focus label{display:inline-flex;align-items:center;min-height:44px;margin-right:14px;cursor:pointer;white-space:nowrap}.chartlet-focus input{margin-right:4px}.chartlet-focus input:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.chartlet-wrapper:has(.chartlet-focus-node:checked) #chartlet-6c2d06c417e7fb7f 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.chartlet-flow-node,.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-1:checked) #chartlet-6c2d06c417e7fb7f .chartlet-n-1 .chartlet-seq-box{stroke-width:3}.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-2:checked) #chartlet-6c2d06c417e7fb7f .chartlet-f-2{opacity:1}.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-2:checked) #chartlet-6c2d06c417e7fb7f .chartlet-n-2 .chartlet-flow-node,.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-2:checked) #chartlet-6c2d06c417e7fb7f .chartlet-n-2 .chartlet-seq-box{stroke-width:3}.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-3:checked) #chartlet-6c2d06c417e7fb7f .chartlet-f-3{opacity:1}.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-3:checked) #chartlet-6c2d06c417e7fb7f .chartlet-n-3 .chartlet-flow-node,.chartlet-wrapper:has(#chartlet-6c2d06c417e7fb7f-focus-3:checked) #chartlet-6c2d06c417e7fb7f .chartlet-n-3 .chartlet-seq-box{stroke-width:3}</style><details class="chartlet-focus"><summary>Focus</summary><fieldset><label><input type="radio" name="chartlet-6c2d06c417e7fb7f-focus" checked> Show all</label><label><input type="radio" name="chartlet-6c2d06c417e7fb7f-focus" class="chartlet-focus-node" id="chartlet-6c2d06c417e7fb7f-focus-0"> customers</label><label><input type="radio" name="chartlet-6c2d06c417e7fb7f-focus" class="chartlet-focus-node" id="chartlet-6c2d06c417e7fb7f-focus-1"> orders</label><label><input type="radio" name="chartlet-6c2d06c417e7fb7f-focus" class="chartlet-focus-node" id="chartlet-6c2d06c417e7fb7f-focus-2"> order_items</label><label><input type="radio" name="chartlet-6c2d06c417e7fb7f-focus" class="chartlet-focus-node" id="chartlet-6c2d06c417e7fb7f-focus-3"> products</label></fieldset></details><figure class="chartlet-figure" data-viz="chart"><figcaption>Shop database</figcaption><div class="chartlet-stage"><svg xmlns="http://www.w3.org/2000/svg" width="820" height="520" viewBox="0 0 820 520" id="chartlet-6c2d06c417e7fb7f" role="img" aria-labelledby="chartlet-6c2d06c417e7fb7f-title chartlet-6c2d06c417e7fb7f-description" class="chartlet-root"><title id="chartlet-6c2d06c417e7fb7f-title">Shop database</title><desc id="chartlet-6c2d06c417e7fb7f-description">Class diagram with 4 classes and 3 relations. customers: 3 attributes, 0 methods. customers is associated with orders (1 : 0..*). orders: 4 attributes, 0 methods. orders is associated with order_items (1 : 1..*). order_items: 3 attributes, 0 methods. products: 4 attributes, 0 methods. products is associated with order_items (1 : 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.chartlet-flow-open{fill:none;stroke:var(--chartlet-zero);stroke-width:1.4;stroke-linejoin:round}</style><g class="chartlet-f chartlet-f-0 chartlet-f-1"><polyline points="344,152 344,196" class="chartlet-flow-edge"><title>customers → orders</title></polyline><text x="332" y="192" text-anchor="end" class="chartlet-flow-card">0..*</text><text x="332" y="164" text-anchor="end" class="chartlet-flow-card">1</text></g><g class="chartlet-f chartlet-f-1 chartlet-f-2"><polyline points="344,300 344,322.4 408,322.4 408,364" class="chartlet-flow-edge"><title>orders → order_items</title></polyline><text x="396" y="360" text-anchor="end" class="chartlet-flow-card">1..*</text><text x="332" y="312" text-anchor="end" class="chartlet-flow-card">1</text></g><g class="chartlet-f chartlet-f-2 chartlet-f-3"><polyline points="492,300 492,322.4 432,322.4 432,364" class="chartlet-flow-edge"><title>products → order_items</title></polyline><text x="420" y="360" text-anchor="end" class="chartlet-flow-card">0..*</text><text x="480" y="312" text-anchor="end" class="chartlet-flow-card">1</text></g><g class="chartlet-f chartlet-n-0 chartlet-f-0 chartlet-f-1"></g><g class="chartlet-f chartlet-n-1 chartlet-f-0 chartlet-f-1 chartlet-f-2"></g><g class="chartlet-f chartlet-n-2 chartlet-f-1 chartlet-f-2 chartlet-f-3"></g><g class="chartlet-f chartlet-n-3 chartlet-f-2 chartlet-f-3"></g><g class="chartlet-f chartlet-n-0 chartlet-f-0 chartlet-f-1"><rect x="292" y="58.5" width="104" height="96" class="chartlet-diagram-shadow"/><rect x="292" y="56" width="104" height="96" class="chartlet-flow-node chartlet-role-blue chartlet-class"><title>customers</title></rect><text x="344" y="82" text-anchor="middle" class="chartlet-flow-label">customers</text><line x1="292" y1="88" x2="396" y2="88" class="chartlet-flow-inner"/><text x="304" y="105" text-anchor="start" class="chartlet-class-member">id (PK)</text><text x="304" y="120" text-anchor="start" class="chartlet-class-member">email</text><text x="304" y="135" text-anchor="start" class="chartlet-class-member">created_at</text></g><g class="chartlet-f chartlet-n-1 chartlet-f-0 chartlet-f-1 chartlet-f-2"><rect x="276" y="198.5" width="136" height="104" class="chartlet-diagram-shadow"/><rect x="276" y="196" width="136" height="104" class="chartlet-flow-node chartlet-role-blue chartlet-class"><title>orders</title></rect><text x="344" y="222" text-anchor="middle" class="chartlet-flow-label">orders</text><line x1="276" y1="228" x2="412" y2="228" class="chartlet-flow-inner"/><text x="288" y="245" text-anchor="start" class="chartlet-class-member">id (PK)</text><text x="288" y="260" text-anchor="start" class="chartlet-class-member">customer_id (FK)</text><text x="288" y="275" text-anchor="start" class="chartlet-class-member">placed_at</text><text x="288" y="290" text-anchor="start" class="chartlet-class-member">status</text></g><g class="chartlet-f chartlet-n-2 chartlet-f-1 chartlet-f-2 chartlet-f-3"><rect x="344" y="366.5" width="152" height="96" class="chartlet-diagram-shadow"/><rect x="344" y="364" width="152" height="96" class="chartlet-flow-node chartlet-role-blue chartlet-class"><title>order_items</title></rect><text x="420" y="390" text-anchor="middle" class="chartlet-flow-label">order_items</text><line x1="344" y1="396" x2="496" y2="396" class="chartlet-flow-inner"/><text x="356" y="413" text-anchor="start" class="chartlet-class-member">order_id (PK, FK)</text><text x="356" y="428" text-anchor="start" class="chartlet-class-member">product_id (PK, FK)</text><text x="356" y="443" text-anchor="start" class="chartlet-class-member">quantity</text></g><g class="chartlet-f chartlet-n-3 chartlet-f-2 chartlet-f-3"><rect x="440" y="198.5" width="104" height="104" class="chartlet-diagram-shadow"/><rect x="440" y="196" width="104" height="104" class="chartlet-flow-node chartlet-role-blue chartlet-class"><title>products</title></rect><text x="492" y="222" text-anchor="middle" class="chartlet-flow-label">products</text><line x1="440" y1="228" x2="544" y2="228" class="chartlet-flow-inner"/><text x="452" y="245" text-anchor="start" class="chartlet-class-member">id (PK)</text><text x="452" y="260" text-anchor="start" class="chartlet-class-member">sku</text><text x="452" y="275" text-anchor="start" class="chartlet-class-member">name</text><text x="452" y="290" text-anchor="start" class="chartlet-class-member">price</text></g></svg><label class="chartlet-hotspot" id="chartlet-6c2d06c417e7fb7f-hs-0" for="chartlet-6c2d06c417e7fb7f-focus-0"></label><label class="chartlet-hotspot" id="chartlet-6c2d06c417e7fb7f-hs-1" for="chartlet-6c2d06c417e7fb7f-focus-1"></label><label class="chartlet-hotspot" id="chartlet-6c2d06c417e7fb7f-hs-2" for="chartlet-6c2d06c417e7fb7f-focus-2"></label><label class="chartlet-hotspot" id="chartlet-6c2d06c417e7fb7f-hs-3" for="chartlet-6c2d06c417e7fb7f-focus-3"></label></div><p class="chartlet-source">Source: Illustrative schema</p><details class="chartlet-data" data-viz-text><summary>Show chart data</summary><table><caption>Data for Shop database</caption><thead><tr><th scope="col">Item</th><th scope="col">Kind</th><th scope="col">Attributes</th><th scope="col">Methods</th><th scope="col">Relations</th></tr></thead><tbody><tr><th scope="row">customers</th><td>Entity</td><td>id (PK); email; created_at</td><td></td><td>is associated with orders (1 : 0..*)</td></tr><tr><th scope="row">orders</th><td>Entity</td><td>id (PK); customer_id (FK); placed_at; status</td><td></td><td>is associated with order_items (1 : 1..*)</td></tr><tr><th scope="row">order_items</th><td>Entity</td><td>order_id (PK, FK); product_id (PK, FK); quantity</td><td></td><td></td></tr><tr><th scope="row">products</th><td>Entity</td><td>id (PK); sku; name; price</td><td></td><td>is associated with order_items (1 : 0..*)</td></tr></tbody></table></details></figure></div>