diff --git a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractionAnalyzer.java b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractionAnalyzer.java
index 72a64b1..a353ac8 100644
--- a/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractionAnalyzer.java
+++ b/src/org/ntlab/traceDebugger/analyzerProvider/DeltaExtractionAnalyzer.java
@@ -39,7 +39,7 @@
 		return extractedStructure;
 	}
 
-	public DeltaInformation extractDeltaForContainerToComponent(Variable variable) {
+	public DeltaInfo extractDeltaForContainerToComponent(Variable variable) {
 		String srcId = variable.getContainerId();
 		String srcClassName = variable.getContainerClassName();
 		String dstId = variable.getValueId();
@@ -60,10 +60,10 @@
 		MethodExecution creationCallTree = extractedStructure.getCreationCallTree();
 		MethodExecution coordinator = extractedStructure.getCoordinator();
 		TracePoint bottomPoint = findTracePoint(reference, creationCallTree, before.getStatement().getTimeStamp());
-		return new DeltaInformation(coordinator, bottomPoint, reference, aliasCollector);
+		return new DeltaInfo(coordinator, bottomPoint, reference, aliasCollector);
 	}
 
-	public DeltaInformation extractDeltaForThisToAnother(String thisId, String thisClassName, String anotherId, String anotherClassName, TracePoint before) {
+	public DeltaInfo extractDeltaForThisToAnother(String thisId, String thisClassName, String anotherId, String anotherClassName, TracePoint before) {
 		MethodExecution me = before.getMethodExecution();
 		Map<ObjectReference, TracePoint> references = me.getObjectReferences(anotherClassName);
 		ObjectReference objectReference = null;
@@ -83,7 +83,7 @@
 		extractedStructure = deltaExtractor.extract(tp, objectReference, aliasCollector);
 		MethodExecution coordinator = extractedStructure.getCoordinator();
 		Reference reference = new Reference(thisId, anotherId, thisClassName, anotherClassName);
-		return new DeltaInformation(coordinator, bottomPoint, reference, aliasCollector);
+		return new DeltaInfo(coordinator, bottomPoint, reference, aliasCollector);
 	}
 
 	private TracePoint findTracePoint(Reference reference, MethodExecution methodExecution, long beforeTime) {