diff --git a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java
new file mode 100644
index 0000000..e417738
--- /dev/null
+++ b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java
@@ -0,0 +1,49 @@
+package org.ntlab.traceCollector.tracer.trace;
+
+/**
+ * �I�u�W�F�N�g�̎Q�Ə��(�G�C���A�X)��\���N���X
+ * @author Isitani
+ *
+ */
+public class Alias {
+	private String objectId;
+	private TracePoint occurrencePoint; // ���Y�I�u�W�F�N�g�̎Q�Ƃ��s���Ă�����s�ӏ��ɑΉ�����TracePoint
+	/**
+	 * ���Y�I�u�W�F�N�g�̎Q�Ƃ�TracePoint�ɂ����Ăǂ��Ɍ���Ă��邩��\��<br>
+	 * 0				�t�B�[���h�A�N�Z�X���̃R���e�i �������� ���\�b�h�Ăяo�����̃��V�[�o<br>
+	 * 1, 2, 3 �c�c n		�t�B�[���h�A�N�Z�X���̃t�B�[���h(1) �������� ���\�b�h�Ăяo������n�Ԗڂ̎�����  (1���珇�Ԃ�)<br>
+	 * -1				���\�b�h�Ăяo�����̖߂�l<br>
+	 * <br>
+	 * ��1: d = a.m(b, c);<br>
+	 * <br>
+	 * ��1�̎��s���ɂ�����, a�̓��\�b�h�Ăяo���̃��V�[�o�Ȃ̂�0, b�̓��\�b�h�Ăяo����1�Ԗڂ̎������Ȃ̂�1,<br>
+	 * c�̓��\�b�h�Ăяo����2�Ֆڂ̎������Ȃ̂�2, a.m(b, c)�̖߂�l��-1 �ƂȂ�.<br>
+	 * <br>
+	 * ��2: d = a.f;<br>
+	 * ��2�̎��s���ɂ�����, a�̓t�B�[���h�̃R���e�i�Ȃ̂�0, b�̓t�B�[���h�Ȃ̂�1 �ƂȂ�.
+	 * 
+	 */
+	private int occurrenceExp;
+	public static final int OCCURRENCE_EXP_CONTAINER = 0;
+	public static final int OCCURRENCE_EXP_RECEIVER = 0;
+	public static final int OCCURRENCE_EXP_FIELD = 1;	
+	public static final int OCCURRENCE_EXP_RETURN = -1;
+	
+	public Alias(String objectId, TracePoint occurrencePoint, int occurrenceExp) {
+		this.objectId = objectId;
+		this.occurrencePoint = occurrencePoint;
+		this.occurrenceExp = occurrenceExp;
+	}
+	
+	public String getObjectId() {
+		return objectId;
+	}
+
+	public TracePoint getOccurrencePoint() {
+		return occurrencePoint;
+	}
+
+	public int getOccurrenceExp() {
+		return occurrenceExp;
+	}	
+}