diff --git a/org.ntlab.traceAnalyzer/src/org/ntlab/trace/MethodExecutionJPDA.java b/org.ntlab.traceAnalyzer/src/org/ntlab/trace/MethodExecutionJPDA.java
new file mode 100644
index 0000000..f95a2ed
--- /dev/null
+++ b/org.ntlab.traceAnalyzer/src/org/ntlab/trace/MethodExecutionJPDA.java
@@ -0,0 +1,45 @@
+package org.ntlab.trace;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+
+public class MethodExecutionJPDA {
+	private String signature;
+	private MethodExecutionJPDA callerMethodExecution = null;
+	private ArrayList<MethodExecutionJPDA> children = new ArrayList<MethodExecutionJPDA>();
+	private long entryTime = 0L;
+	
+	public MethodExecutionJPDA(String signature, long enterTime) {
+		this.signature = signature;
+		this.entryTime  = enterTime;
+	}
+	
+	public String getSignature() {
+		return signature;
+	}
+
+	public long getEntryTime() {
+		return entryTime;
+	}
+	
+	public void addChild(MethodExecutionJPDA child) {
+		children.add(child);
+	}
+
+	public ArrayList<MethodExecutionJPDA> getChildren() {
+		return children;
+	}
+
+	public void setCaller(MethodExecutionJPDA callerMethodExecution) {
+		this.callerMethodExecution  = callerMethodExecution;
+	}
+
+	public MethodExecutionJPDA getParent() {
+		return callerMethodExecution;
+	}
+
+	public MethodExecutionJPDA getCallerMethodExecution() {
+		return callerMethodExecution;
+	}
+}