diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..83a3842
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,52 @@
+<project name="Port-scans-detector-with-prolog" basedir="." default="main">
+
+ 
+    <property name="src.dir"     value="src"/>
+ 
+    <property name="build.dir"   value="build"/>
+    <property name="classes.dir" value="${build.dir}/classes"/>
+    <property name="jar.dir"     value="${build.dir}/jar"/>
+     <property name="lib.dir"     value="lib/"/>
+    <property name="main-class" value="ids.Main"/>
+
+
+    <path id="classpath">
+        <fileset dir="${lib.dir}" includes="**/*.jar"/>
+    </path>
+
+
+ 
+    <target name="clean">
+        <delete dir="${build.dir}"/>
+    </target>
+ 
+    <target name="compile">
+        <mkdir dir="${classes.dir}"/>
+        <javac srcdir="${src.dir}" destdir="${classes.dir}" classpathref="classpath"/>
+    </target>
+
+    <target name="run" depends="jar">
+        <java fork="true" classname="${main-class}">
+            <classpath>
+                <path refid="classpath"/>
+                <path location="project.jar"/>
+            </classpath>
+       <arg line="${kb} ${num_conn} ${file} ${retract}"/>
+ 	</java>
+    </target>
+    
+    <target name="jar" depends="compile">
+        <jar destfile="project.jar" basedir="${classes.dir}">
+            <manifest>
+                <attribute name="Main-Class" value="${main-class}"/>
+		<attribute name="Class-Path" value="${lib.dir}/jpcap.jar:${lib.dir}/2p.jar"/>
+            </manifest>
+        </jar>
+    </target>
+ 
+    <target name="clean-build" depends="clean,jar"/>
+ 
+    <target name="main" depends="clean,run"/>
+ 
+</project>
+
diff --git a/compile.sh b/compile.sh
index fd329c4..6e87974 100644
--- a/compile.sh
+++ b/compile.sh
@@ -1,2 +1,2 @@
 #!/bin/bash
-javac -cp project.jar -classpath lib/2p.jar:lib/jpcap.jar src/ids/*.java
+javac -classpath lib/2p.jar:lib/jpcap.jar ids/*.java
diff --git a/src/ids/Analyzer.java b/src/ids/Analyzer.java
index afe2744..d712443 100644
--- a/src/ids/Analyzer.java
+++ b/src/ids/Analyzer.java
@@ -9,7 +9,6 @@
 
 public class Analyzer extends Thread{ 
 	
-	private Blackboard blackboard;
 	private Prolog engine;
 	private Vector<TCPPacket> packets = new Vector<TCPPacket>();
 	
@@ -229,13 +228,4 @@ public boolean query(){
 	}
 
 
-
-	public Blackboard getBlackboard() {
-		return blackboard;
-	}
-
-
-	public void setBlackboard(Blackboard blackboard) {
-		this.blackboard = blackboard;
-	}
 }