diff --git a/results_visualization/js/visualization.js b/results_visualization/js/visualization.js
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+"use strict";
+
+/**
+ * @module visualization
+ * @description Verarbeitung und Darstellung aggregierter Zeitmessungsdaten.
+ * Verantwortlich für Rendering und Update von Charts und Summary Cards.
+ */
+
+/**
+ * Rendert interaktive Diagramme auf Basis der geladenen Daten.
+ * @param {Array<Object>} data - Aggregierte Ergebnisse von der /results API.
+ * @param {HTMLElement} container - Container-Element zur Anzeige des Diagramms.
+ * @returns {void}
+ */
+export function renderCharts(data, container) {
+  if (!Array.isArray(data) || !container) return;
+
+  container.innerHTML = "";
+
+  const canvas = document.createElement("canvas");
+  canvas.id = "chart-results";
+  canvas.setAttribute("aria-label", "Zeitmessungsdiagramm");
+  canvas.setAttribute("role", "img");
+  container.appendChild(canvas);
+
+  const ctx = canvas.getContext("2d");
+
+  const runTypes = [...new Set(data.map(d => d.run_type))];
+  const labels = data.map(d => d.run_id);
+
+  const datasets = runTypes.map((type) => {
+    const subset = data.filter(d => d.run_type === type);
+    return {
+      label: type,
+      data: subset.map(r => r.metrics?.latency_mean ?? 0),
+      borderColor: type === "pinned" ? "#2a9d8f" : "#e76f51",
+      backgroundColor: type === "pinned" ? "rgba(42,157,143,0.4)" : "rgba(231,111,81,0.4)",
+      borderWidth: 2,
+      tension: 0.3,
+    };
+  });
+
+  if (window.currentChart) {
+    window.currentChart.destroy();
+  }
+
+  window.currentChart = new Chart(ctx, {
+    type: "line",
+    data: { labels, datasets },
+    options: {
+      responsive: true,
+      interaction: { mode: "index", intersect: false },
+      scales: {
+        x: { title: { display: true, text: "Run ID" } },
+        y: { title: { display: true, text: "Latenz (ms)" }, beginAtZero: true }
+      },
+      plugins: {
+        legend: { position: "top" },
+        tooltip: {
+          callbacks: {
+            label: ctx => `${ctx.dataset.label}: ${ctx.parsed.y.toFixed(2)} ms`
+          }
+        }
+      }
+    }
+  });
+
+  renderSummary(data);
+}
+
+/**
+ * Aktualisiert Diagramme und Statistiken basierend auf Filtern.
+ * @param {Object} filters - Nutzerdefinierte Filterparameter.
+ * @param {Array<Object>} data - Aktuelle Ergebnisdaten.
+ * @returns {void}
+ */
+export function updateVisualization(filters, data) {
+  if (typeof filters !== "object" || !Array.isArray(data)) return;
+
+  const filteredData = data.filter(item => {
+    const matchRunType = !filters.runType || item.run_type === filters.runType;
+    const matchMetric = !filters.metric || Object.keys(item.metrics || {}).includes(filters.metric);
+    return matchRunType && matchMetric;
+  });
+
+  const container = document.querySelector("#chart-container");
+  renderCharts(filteredData, container);
+}
+
+/**
+ * Rendert aggregierte Kennzahlen als Summary Cards unterhalb des Diagramms.
+ * @param {Array<Object>} data
+ */
+function renderSummary(data) {
+  const summaryContainer = document.querySelector("#summary-container");
+  if (!summaryContainer) return;
+
+  const total = data.length;
+  const avgLatency = (data.reduce((acc, val) => acc + (val.metrics?.latency_mean ?? 0), 0) / Math.max(total, 1)).toFixed(2);
+  const avgVariance = (data.reduce((acc, val) => acc + (val.metrics?.variance ?? 0), 0) / Math.max(total, 1)).toFixed(3);
+  const avgStability = (data.reduce((acc, val) => acc + (val.metrics?.stability_index ?? 0), 0) / Math.max(total, 1)).toFixed(3);
+
+  summaryContainer.innerHTML = `
+    <div class="summary-card">
+      <h3>Runs insgesamt</h3>
+      <p>${total}</p>
+    </div>
+    <div class="summary-card">
+      <h3>Ø Latenz</h3>
+      <p>${avgLatency} ms</p>
+    </div>
+    <div class="summary-card">
+      <h3>Ø Varianz</h3>
+      <p>${avgVariance}</p>
+    </div>
+    <div class="summary-card">
+      <h3>Ø Stabilität</h3>
+      <p>${avgStability}</p>
+    </div>
+  `;
+}