diff --git a/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/Action.java b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/Action.java
new file mode 100644
index 00000000..116438a4
--- /dev/null
+++ b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/Action.java
@@ -0,0 +1,12 @@
+package edu.cuny.hunter.log.core.analysis;
+
+public enum Action {
+	NONE,
+	CONVERT_TO_SEVERE,
+	CONVERT_TO_WARNING,
+	CONVERT_TO_INFO,
+	CONVERT_TO_CONFIG,
+	CONVERT_TO_FINE,
+	CONVERT_TO_FINER,
+	CONVERT_TO_FINEST
+}
diff --git a/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogAnalyzer.java b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogAnalyzer.java
index 77b3f721..6238814d 100644
--- a/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogAnalyzer.java
+++ b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogAnalyzer.java
@@ -49,8 +49,8 @@ public void analyze() {
 		// check whether action is needed
 		for (LogInvocation logInvocation : this.logInvocationSet)
 			if (this.doAction(logInvocation))
-				// TODO: add more log messages here
-				LOGGER.info("Refactoring happens!");
+				LOGGER.info("Do action: " + logInvocation.getAction() + "! The changed log expression is "
+						+ logInvocation.getExpression());
 
 	}
 
@@ -58,11 +58,25 @@ private boolean doAction(LogInvocation logInvocation) {
 		Level currentLogLevel = logInvocation.getLogLevel();
 		Level suggestedLogLevel = getSuggestedLogLevel(boundary, logInvocation.getDegreeOfInterestValue());
 
-		// TODO: do action here
 		if (currentLogLevel == suggestedLogLevel)
 			return false;
 		if (suggestedLogLevel == null || currentLogLevel == null)
 			return false;
+
+		if (suggestedLogLevel == Level.FINEST)
+			logInvocation.setAction(Action.CONVERT_TO_FINEST);
+		if (suggestedLogLevel == Level.FINER)
+			logInvocation.setAction(Action.CONVERT_TO_FINER);
+		if (suggestedLogLevel == Level.FINE)
+			logInvocation.setAction(Action.CONVERT_TO_FINE);
+		if (suggestedLogLevel == Level.CONFIG)
+			logInvocation.setAction(Action.CONVERT_TO_CONFIG);
+		if (suggestedLogLevel == Level.INFO)
+			logInvocation.setAction(Action.CONVERT_TO_INFO);
+		if (suggestedLogLevel == Level.WARNING)
+			logInvocation.setAction(Action.CONVERT_TO_WARNING);
+		if (suggestedLogLevel == Level.SEVERE)
+			logInvocation.setAction(Action.CONVERT_TO_SEVERE);
 		return true;
 	}
 
@@ -76,6 +90,10 @@ private boolean doAction(LogInvocation logInvocation) {
 	private static Level getSuggestedLogLevel(LinkedList<Float> boundary, float DOI) {
 		if (boundary == null)
 			return null;
+		if (Float.compare(boundary.getFirst(), boundary.getLast()) == 0) {
+			LOGGER.info("The DOI values are all same. Cannot get valid results.");
+			return null;
+		}
 		if (DOI >= boundary.get(0) && DOI < boundary.get(1))
 			return Level.FINEST;
 		if (DOI < boundary.get(2))
diff --git a/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogInvocation.java b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogInvocation.java
index 95fcb92e..897f4d77 100644
--- a/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogInvocation.java
+++ b/edu.cuny.hunter.log.core/src/edu/cuny/hunter/log/core/analysis/LogInvocation.java
@@ -41,6 +41,8 @@ public class LogInvocation {
 
 	private static final Logger LOGGER = Logger.getLogger(LoggerNames.LOGGER_NAME);
 
+	private Action action = Action.NONE;
+
 	public LogInvocation(MethodInvocation logExpression, Level loggingLevel) {
 		this.expression = logExpression;
 		this.logLevel = loggingLevel;
@@ -55,7 +57,10 @@ public LogInvocation(MethodInvocation logExpression, Level loggingLevel) {
 		if (degreeOfInterest != null) {
 			degreeOfInterestValue = degreeOfInterest.getValue();
 		}
+	}
 
+	public void setAction(Action action) {
+		this.action = action;
 	}
 
 	public float getDegreeOfInterestValue() {
@@ -139,4 +144,8 @@ public void logInfo() {
 				+ ". Degree of Interest " + (degreeOfInterest == null ? "N/A" : degreeOfInterest.getValue()) + ". ");
 	}
 
+	public Action getAction() {
+		return this.action;
+	}
+
 }
diff --git a/edu.cuny.hunter.log.evalution/src/edu/hunter/log/evalution/handlers/EvaluationHandler.java b/edu.cuny.hunter.log.evalution/src/edu/hunter/log/evalution/handlers/EvaluationHandler.java
index d4bd4e0f..97437bd3 100644
--- a/edu.cuny.hunter.log.evalution/src/edu/hunter/log/evalution/handlers/EvaluationHandler.java
+++ b/edu.cuny.hunter.log.evalution/src/edu/hunter/log/evalution/handlers/EvaluationHandler.java
@@ -74,6 +74,9 @@ public Object execute(ExecutionEvent event) throws ExecutionException {
 						CSVPrinter resultPrinter = createCSVPrinter("result.csv",
 								new String[] { "subject raw", "log expression", "start pos", "logging level",
 										"type FQN", "enclosing method", "DOI" });
+						CSVPrinter actionPrinter = createCSVPrinter("log_actions.csv",
+								new String[] { "subject raw", "log expression", "start pos", "logging level",
+										"type FQN", "enclosing method", "action" });
 
 						// for each selected java project
 						for (IJavaProject project : javaProjectList) {
@@ -95,10 +98,17 @@ public Object execute(ExecutionEvent event) throws ExecutionException {
 										logInvocation.getEnclosingType().getFullyQualifiedName(),
 										Util.getMethodIdentifier(logInvocation.getEnclosingEclipseMethod()),
 										logInvocation.getDegreeOfInterestValue());
+
+								actionPrinter.printRecord(project.getElementName(), logInvocation.getExpression(),
+										logInvocation.getStartPosition(), logInvocation.getLogLevel(),
+										logInvocation.getEnclosingType().getFullyQualifiedName(),
+										Util.getMethodIdentifier(logInvocation.getEnclosingEclipseMethod()),
+										logInvocation.getAction());
 							}
 						}
 
 						resultPrinter.close();
+						actionPrinter.close();
 					} catch (IOException e) {
 						LOGGER.severe("Cannot create printer.");
 					} catch (OperationCanceledException | CoreException e) {
@@ -108,4 +118,5 @@ public Object execute(ExecutionEvent event) throws ExecutionException {
 		}
 		return null;
 	}
+
 }