diff --git a/.gitignore b/.gitignore
index b4ea534..d075be7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,5 +9,9 @@ ScenariumConfig.txt
 *.class
 *~
 *.bck
-
+build.number
+/extern/
+/out/
+/.settings/
+/junit/
 /target/
diff --git a/build.xml b/build.xml
index 23bb674..f40b9f0 100644
--- a/build.xml
+++ b/build.xml
@@ -1,21 +1,31 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project basedir="." default="build" name="scenarium-logger" xmlns:jacoco="antlib:org.jacoco.ant">
 	<property environment="env"/>
+	
+	<property name="version" value="0.1.0" />
+	
 	<property name="debuglevel" value="source,lines,vars"/>
 	<!-- configure dependency of JAVA -->
 	<property name="target" value="14"/>
 	<property name="source" value="14"/>
 	
+	<property name="source.lib.dir" location="./src/" />
+	<property name="source.test.dir" location="./test/src/" />
+	
 	<property name="result.dir" location="./out/ant/" />
+	<property name="result.jar.dir" location="${result.dir}/package" />
+	<property name="result.javadoc.dir" location="${result.dir}/javadoc" />
 	<property name="result.juint.dir" location="${result.dir}/junit" />
-	<property name="result.classes.dir" location="${result.dir}/classes" />
-	<property name="result.report.dir" location="${result.dir}/site/jacoco" />
-	<property name="result.exec.file" location="${result.dir}/jacoco.exec" />
+	<property name="result.classes.lib.dir" location="${result.dir}/classes-lib" />
+	<property name="result.classes.test.dir" location="${result.dir}/classes-test" />
+	<property name="result.coverage.report.dir" location="${result.dir}/coverage/site" />
+	<property name="result.coverage.work-file" location="${result.dir}/coverage/jacoco.exec" />
 	<!-- Import JaCoCo Ant tasks -->
+	<!-- https://www.eclemma.org/jacoco/-->
 	<taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
-		<classpath path="/home/heero/jacoco/jacocoant.jar" />
+		<classpath path="${basedir}/extern/jacoco/jacocoant.jar" />
 	</taskdef>
-	<property name="libPath" value="${user.home}"/>
+	<property name="libPath" value="${basedir}/extern/lib/"/> <!--value="${user.home}"-->
 	<!--
 mkdir -p extern/lib
 cd extern/lib
@@ -37,109 +47,168 @@ wget https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core
 	-->
 	<path id="junit.classpath">
 		<!-- keep all lib in this directiry-->
-		<fileset dir="${basedir}/extern/lib/"/>
+		<fileset dir="${libPath}"/>
 		<!--
-		<pathelement location="${basedir}/extern/lib/junit-jupiter-api-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-jupiter-engine-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-jupiter-migrationsupport-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-jupiter-params-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-platform-commons-1.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-platform-engine-1.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-platform-launcher-1.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-jupiter-runner-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-platform-suite-api-1.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-vintage-engine-5.6.2.jar"/>
-		<pathelement location="${basedir}/extern/lib/opentest4j-1.2.0.jar"/>
-		<pathelement location="${basedir}/extern/lib/apiguardian-api-1.1.0.jar"/>
-		<pathelement location="${basedir}/extern/lib/junit-4.13.jar"/>
-		<pathelement location="${basedir}/extern/lib/hamcrest-core-1.3.jar"/>
+		<pathelement location="${basedir}/junit-jupiter-api-5.6.2.jar"/>
+		<pathelement location="${basedir}/junit-jupiter-engine-5.6.2.jar"/>
+		<pathelement location="${basedir}/junit-jupiter-migrationsupport-5.6.2.jar"/>
+		<pathelement location="${basedir}/junit-jupiter-params-5.6.2.jar"/>
+		<pathelement location="${basedir}/junit-platform-commons-1.6.2.jar"/>
+		<pathelement location="${basedir}/junit-platform-engine-1.6.2.jar"/>
+		<pathelement location="${basedir}/junit-platform-launcher-1.6.2.jar"/>
+		<pathelement location="${basedir}/junit-jupiter-runner-5.6.2.jar"/>
+		<pathelement location="${basedir}/junit-platform-suite-api-1.6.2.jar"/>
+		<pathelement location="${basedir}/junit-vintage-engine-5.6.2.jar"/>
+		<pathelement location="${basedir}/opentest4j-1.2.0.jar"/>
+		<pathelement location="${basedir}/apiguardian-api-1.1.0.jar"/>
+		<pathelement location="${basedir}/junit-4.13.jar"/>
+		<pathelement location="${basedir}/hamcrest-core-1.3.jar"/>
 		-->
 	</path>
-	<path id="scenarium-logger.classpath">
-		<pathelement location="target/classes"/>
-		<pathelement location="target/test-classes"/>
-		<path refid="junit.classpath"/>
-	</path>
-	<path id="run.TestBasicLog.classpath">
-		<path refid="scenarium-logger.classpath"/>
+	<path id="io.scenarium.logger.classpath">
+		<pathelement location="${result.classes.lib.dir}"/>
+	</path>
+	<path id="test.scenarium.logger.classpath">
+		<path refid="io.scenarium.logger.classpath"/>
+		<pathelement location="${result.classes.test.dir}"/>
 		<path refid="junit.classpath"/>
 	</path>
+	
+	<!-- =========================================================================== -->
+	<!-- initialize the build system -->
+	<!-- =========================================================================== -->
 	<target name="init">
-		<mkdir dir="target/classes"/>
-		<mkdir dir="target/test-classes"/>
-		<copy includeemptydirs="false" todir="target/classes">
-			<fileset dir="src">
+		<mkdir dir="${result.classes.lib.dir}"/>
+		<mkdir dir="${result.classes.test.dir}"/>
+		<copy includeemptydirs="false" todir="${result.classes.lib.dir}">
+			<fileset dir="${source.lib.dir}">
 				<exclude name="**/*.launch"/>
 				<exclude name="**/*.java"/>
 			</fileset>
 		</copy>
-		<copy includeemptydirs="false" todir="target/test-classes">
-			<fileset dir="test/src">
+		<copy includeemptydirs="false" todir="${result.classes.test.dir}">
+			<fileset dir="${source.test.dir}">
 				<include name="**/*.java"/>
 				<exclude name="**/*.launch"/>
 				<exclude name="**/*.java"/>
 			</fileset>
 		</copy>
 	</target>
+	
+	<!-- =========================================================================== -->
+	<!-- clean all the build-tree -->
+	<!-- =========================================================================== -->
 	<target name="clean">
-		<delete dir="target/classes"/>
-		<delete dir="target/test-classes"/>
+		<delete dir="${result.dir}/"/>
 	</target>
-	<target depends="clean" name="cleanall"/>
-	<target depends="build-subprojects,build-project" name="build"/>
-	<target name="build-subprojects"/>
-	<target depends="init" name="build-project">
+	
+	<!-- =========================================================================== -->
+	<!-- Build all the applications -->
+	<!-- =========================================================================== -->
+	<target depends="init" name="build-lib">
 		<echo message="${ant.project.name}: ${ant.file}"/>
-		<javac debug="true" debuglevel="${debuglevel}" destdir="target/classes" includeantruntime="false" source="${source}" target="${target}">
-			<src path="src"/>
-			<classpath refid="scenarium-logger.classpath"/>
+		<javac debug="true" debuglevel="${debuglevel}" destdir="${result.classes.lib.dir}" includeantruntime="false" source="${source}" target="${target}">
+			<src path="${source.lib.dir}"/>
+			<classpath refid="io.scenarium.logger.classpath"/>
 		</javac>
-		<javac debug="true" debuglevel="${debuglevel}" destdir="target/test-classes" includeantruntime="false" source="${source}" target="${target}">
-			<src path="test/src"/>
+	</target>
+	<target depends="init" name="build-test">
+		<echo message="${ant.project.name}: ${ant.file}"/>
+		<javac debug="true" debuglevel="${debuglevel}" destdir="${result.classes.test.dir}" includeantruntime="false" source="${source}" target="${target}">
+			<src path="${source.test.dir}"/>
 			<include name="**/*.java"/>
-			<classpath refid="scenarium-logger.classpath"/>
+			<classpath refid="test.scenarium.logger.classpath"/>
 		</javac>
 	</target>
-	<target description="compile project with Eclipse compiler" name="build-eclipse-compiler">
-		<property name="build.compiler" value="org.eclipse.jdt.core.JDTCompilerAdapter"/>
-		<antcall target="build"/>
+	
+	<!-- =========================================================================== -->
+	<!-- Build all the applications -->
+	<!-- =========================================================================== -->
+	<target depends="build-lib,build-test" name="build">
 	</target>
-	<target name="TestBasicLog">
+	
+	<!-- =========================================================================== -->
+	<!-- javadoc generation -->
+	<!-- =========================================================================== -->
+	<target name="javadoc">
+		<javadoc destdir="${result.javadoc.dir}"
+			author="true"
+			version="true"
+			use="true"
+			windowtitle="Scenarium library API: ${ant.project.name}">
+			
+			<fileset dir="${source.lib.dir}" defaultexcludes="yes">
+				<include name="io/scenarium/**"/>
+			</fileset>
+			
+			<doctitle><![CDATA[<h1>Scenarium library: ${ant.project.name}</h1>]]></doctitle>
+			<bottom><![CDATA[<i>Copyright &#169; 2020 Scenarium. All Rights Reserved.</i>]]></bottom>
+			<!--
+			<tag name="todo" scope="all" description="To do:"/>
+			<group title="Group 1 Packages" packages="com.dummy.test.a*"/>
+			<group title="Group 2 Packages" packages="com.dummy.test.b*:com.dummy.test.c*"/>
+			<link offline="true" href="https://docs.oracle.com/javase/8/docs/api/" packagelistLoc="C:\tmp"/>
+			<link href="https://scenarium.io/"/>
+			-->
+		</javadoc>
+	</target>
+	
+	<!-- =========================================================================== -->
+	<!-- package binary, source and javadoc in 3 jar -->
+	<!-- =========================================================================== -->
+	<target name="package-lib" depends="build" description="Package compile java in a jar">
+		<buildnumber />
+		<jar destfile="${result.jar.dir}/${ant.project.name}-${version}.jar" indexMetaInf="true" basedir="${result.classes.lib.dir}" />
+	</target>
+	<target name="package-src" description="Package sources in a jar">
+		<buildnumber />
+		<jar destfile="${result.jar.dir}/${ant.project.name}-${version}-sources.jar" basedir="${source.lib.dir}" />
+	</target>
+	<target name="package-javadoc" depends="javadoc" description="Package javadoc in a jar">
+		<buildnumber />
+		<jar destfile="${result.jar.dir}/${ant.project.name}-${version}-javadoc.jar" basedir="${result.javadoc.dir}" />
+	</target>
+	<target name="package" depends="package-lib,package-src,package-javadoc" description="generate all jar">
+	</target>
+
+	<!-- =========================================================================== -->
+	<!-- test the whole application -->
+	<!-- =========================================================================== -->
+	<target name="test">
 		<mkdir dir="${result.juint.dir}"/>
-		<jacoco:coverage destfile="${result.exec.file}">
+		<jacoco:coverage destfile="${result.coverage.work-file}">
 			<junit fork="yes" printsummary="withOutAndErr">
 				<formatter type="xml"/>
 				<test name="test.scenarium.logger.TestBasicLog" todir="${result.juint.dir}"/>
 				<jvmarg line="-ea"/>
-				<classpath refid="run.TestBasicLog.classpath"/>
+				<classpath refid="test.scenarium.logger.classpath"/>
 			</junit>
 		</jacoco:coverage>
 	</target>
-	<target name="test" depends="TestBasicLog">
-	</target>
-	<target name="report" depends="test">
+	<!-- creat all the test report -->
+	<target name="report">
 		<!-- Step 3: Create coverage report -->
 		<jacoco:report>
 
 			<!-- This task needs the collected execution data and ... -->
 			<executiondata>
-				<file file="${result.exec.file}" />
+				<file file="${result.coverage.work-file}" />
 			</executiondata>
 
 			<!-- the class files and optional source files ... -->
 			<structure name="JaCoCo Ant Example">
 				<classfiles>
-					<fileset dir="${result.classes.dir}" />
+					<fileset dir="${result.classes.lib.dir}" />
 				</classfiles>
 				<sourcefiles encoding="UTF-8">
-					<fileset dir="src" />
+					<fileset dir="${source.lib.dir}" />
 				</sourcefiles>
 			</structure>
 
 			<!-- to produce reports in different formats. -->
-			<html destdir="${result.report.dir}" />
-			<csv destfile="${result.report.dir}/report.csv" />
-			<xml destfile="${result.report.dir}/report.xml" />
+			<html destdir="${result.coverage.report.dir}" />
+			<csv destfile="${result.coverage.report.dir}/report.csv" />
+			<xml destfile="${result.coverage.report.dir}/report.xml" />
 		</jacoco:report>
 		<junitreport todir="${result.juint.dir}">
 			<fileset dir="${result.juint.dir}">
@@ -148,7 +217,10 @@ wget https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core
 			<report format="frames" todir="${result.juint.dir}"/>
 		</junitreport>
 	</target>
+	
+	<!-- =========================================================================== -->
 	<!-- generate by eclipse do not understand why -->
+	<!-- =========================================================================== -->
 	<target description="copy Eclipse compiler jars to ant lib directory" name="init-eclipse-compiler">
 		<copy todir="${ant.library.dir}">
 			<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
@@ -158,4 +230,8 @@ wget https://repo1.maven.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core
 			<fileset dir="${ECLIPSE_HOME}/plugins" includes="org.eclipse.jdt.core_*.jar"/>
 		</unzip>
 	</target>
+	<target description="compile project with Eclipse compiler" name="build-eclipse-compiler">
+		<property name="build.compiler" value="org.eclipse.jdt.core.JDTCompilerAdapter"/>
+		<antcall target="build"/>
+	</target>
 </project>