diff --git a/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFWriterFactory.java b/rdfunit-core/src/main/java/org/aksw/rdfunit/io/writer/RDFWriterFactory.java
similarity index 98%
rename from rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFWriterFactory.java
rename to rdfunit-core/src/main/java/org/aksw/rdfunit/io/writer/RDFWriterFactory.java
index 875917729..55ac48de0 100644
--- a/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFWriterFactory.java
+++ b/rdfunit-core/src/main/java/org/aksw/rdfunit/io/writer/RDFWriterFactory.java
@@ -1,9 +1,8 @@
-package org.aksw.rdfunit.utils;
+package org.aksw.rdfunit.io.writer;
 
 import org.aksw.rdfunit.enums.TestCaseExecutionType;
 import org.aksw.rdfunit.io.format.FormatService;
 import org.aksw.rdfunit.io.format.SerializationFormat;
-import org.aksw.rdfunit.io.writer.*;
 
 import java.io.OutputStream;
 
diff --git a/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVUtils.java b/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEndpoint.java
similarity index 74%
rename from rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVUtils.java
rename to rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEndpoint.java
index 41d4f3142..64b2f7c19 100644
--- a/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVUtils.java
+++ b/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEndpoint.java
@@ -20,9 +20,9 @@
  * @since 3 /31/15 4:15 PM
  * @version $Id: $Id
  */
-public final class LOVUtils {
+public final class LOVEndpoint {
 
-    private static final Logger log = LoggerFactory.getLogger(LOVUtils.class);
+    private static final Logger log = LoggerFactory.getLogger(LOVEndpoint.class);
 
     private static final String lovEndpointURI = "http://lov.okfn.org/dataset/lov/sparql";
     private static final String lovGraph = "http://lov.okfn.org/dataset/lov";
@@ -39,7 +39,7 @@ public final class LOVUtils {
             "} \n" +
             "ORDER BY ?vocabPrefix ";
 
-    private LOVUtils(){}
+    public LOVEndpoint(){}
 
 
     /**
@@ -47,13 +47,13 @@ private LOVUtils(){}
      *
      * @return a {@link java.util.List} object.
      */
-    public static List<LOVEntry> getAllLOVEntries() {
+    public List<SchemaEntry> getAllLOVEntries() {
 
-        List<LOVEntry> lovEntries = new LinkedList<>();
-        QueryExecutionFactory qef = new QueryExecutionFactoryHttp(getLovEndpointURI(), Arrays.asList(LOVUtils.getLovGraph()));
+        List<SchemaEntry> lovEntries = new LinkedList<>();
+        QueryExecutionFactory qef = new QueryExecutionFactoryHttp(lovEndpointURI, Arrays.asList(lovGraph));
 
 
-        try (QueryExecution qe = qef.createQueryExecution(getLOVSparqlQuery())) {
+        try (QueryExecution qe = qef.createQueryExecution(lovSparqlQuery)) {
 
             ResultSet rs = qe.execSelect();
             while (rs.hasNext()) {
@@ -70,7 +70,7 @@ public static List<LOVEntry> getAllLOVEntries() {
                 if (row.get("definedBy") != null) {
                     definedBy = row.get("definedBy").asLiteral().getLexicalForm();
                 }
-                lovEntries.add(new LOVEntry(prefix, vocab, ns, definedBy));
+                lovEntries.add(new SchemaEntry(prefix, vocab, ns, definedBy));
             }
         } catch (Exception e) {
             log.error("Encountered error when reading schema information from LOV, schema prefixes & auto schema discovery might not work as expected", e);
@@ -78,34 +78,4 @@ public static List<LOVEntry> getAllLOVEntries() {
 
         return lovEntries;
     }
-
-
-    /**
-     * Gets the lOV sparql query.
-     *
-     * @return the lOV sparql query
-     */
-    public static String getLOVSparqlQuery() {
-        return lovSparqlQuery;
-    }
-
-    /**
-     * Gets lov endpoint uRI.
-     *
-     * @return the lov endpoint uRI
-     */
-    public static String getLovEndpointURI() {
-        return lovEndpointURI;
-    }
-
-    /**
-     * Gets lov graph.
-     *
-     * @return the lov graph
-     */
-    public static String getLovGraph() {
-        return lovGraph;
-    }
-
-
 }
diff --git a/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEntry.java b/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/SchemaEntry.java
similarity index 88%
rename from rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEntry.java
rename to rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/SchemaEntry.java
index d315e447c..93616be9e 100644
--- a/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/LOVEntry.java
+++ b/rdfunit-core/src/main/java/org/aksw/rdfunit/prefix/SchemaEntry.java
@@ -7,7 +7,7 @@
  * @version $Id: $Id
  * @since 0.7.6
  */
-public final class LOVEntry implements Comparable<LOVEntry>{
+public final class SchemaEntry implements Comparable<SchemaEntry>{
 
     private final String prefix; // prefix is a unique identifier for all entries
     private final String vocabularyURI;
@@ -22,7 +22,7 @@ public final class LOVEntry implements Comparable<LOVEntry>{
      * @param vocabularyNamespace the vocabulary namespace
      * @param vocabularyDefinedBy the vocabulary defined by
      */
-    public LOVEntry(String prefix, String vocabularyURI, String vocabularyNamespace, String vocabularyDefinedBy) {
+    public SchemaEntry(String prefix, String vocabularyURI, String vocabularyNamespace, String vocabularyDefinedBy) {
         this.prefix = prefix;
         this.vocabularyURI = vocabularyURI;
         this.vocabularyNamespace = vocabularyNamespace;
@@ -36,7 +36,7 @@ public LOVEntry(String prefix, String vocabularyURI, String vocabularyNamespace,
      * @param vocabularyURI the vocabulary uRI
      * @param vocabularyNamespace the vocabulary namespace
      */
-    public LOVEntry(String prefix, String vocabularyURI, String vocabularyNamespace) {
+    public SchemaEntry(String prefix, String vocabularyURI, String vocabularyNamespace) {
         this(prefix, vocabularyURI, vocabularyNamespace, vocabularyNamespace);
     }
 
@@ -82,7 +82,7 @@ public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
 
-        LOVEntry lovEntry = (LOVEntry) o;
+        SchemaEntry lovEntry = (SchemaEntry) o;
 
         return prefix.equals(lovEntry.prefix);
     }
@@ -108,7 +108,7 @@ public String toString() {
 
     /** {@inheritDoc} */
     @Override
-    public int compareTo(LOVEntry o) {
+    public int compareTo(SchemaEntry o) {
         return this.prefix.compareTo(o.getPrefix());
     }
 }
diff --git a/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFUnitUtils.java b/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFUnitUtils.java
index 3a141d054..c1e65ede6 100644
--- a/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFUnitUtils.java
+++ b/rdfunit-core/src/main/java/org/aksw/rdfunit/utils/RDFUnitUtils.java
@@ -1,7 +1,7 @@
 package org.aksw.rdfunit.utils;
 
-import org.aksw.rdfunit.prefix.LOVEntry;
-import org.aksw.rdfunit.prefix.LOVUtils;
+import org.aksw.rdfunit.prefix.LOVEndpoint;
+import org.aksw.rdfunit.prefix.SchemaEntry;
 import org.aksw.rdfunit.services.SchemaService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -99,7 +99,7 @@ public static void fillSchemaServiceFromFile(InputStream additionalCSV) {
     public static void fillSchemaServiceFromLOV() {
 
         int count = SchemaService.getSize();
-        for (LOVEntry entry : LOVUtils.getAllLOVEntries()) {
+        for (SchemaEntry entry : new LOVEndpoint().getAllLOVEntries()) {
             SchemaService.addSchemaDecl(entry.getPrefix(), entry.getVocabularyNamespace(), entry.getVocabularyDefinedBy());
         }
 
@@ -108,16 +108,7 @@ public static void fillSchemaServiceFromLOV() {
         log.info("Loaded " + count + " additional schema declarations from LOV SPARQL Endpoint");
     }
 
-    /**
-     * <p>fileExists.</p>
-     *
-     * @param path a {@link java.lang.String} object.
-     * @return a boolean.
-     */
-    public static boolean fileExists(String path) {
-        File f = new File(path);
-        return f.exists();
-    }
+
 
     /**
      * <p>getFirstItemInCollection.</p>
diff --git a/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/cli/ValidateCLI.java b/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/cli/ValidateCLI.java
index a1f998189..20ac9e637 100644
--- a/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/cli/ValidateCLI.java
+++ b/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/cli/ValidateCLI.java
@@ -6,11 +6,13 @@
 import org.aksw.rdfunit.RDFUnit;
 import org.aksw.rdfunit.RDFUnitConfiguration;
 import org.aksw.rdfunit.coverage.TestCoverageEvaluator;
+import org.aksw.rdfunit.io.IOUtils;
 import org.aksw.rdfunit.io.format.SerializationFormat;
 import org.aksw.rdfunit.io.reader.RDFReaderException;
 import org.aksw.rdfunit.io.writer.RDFMultipleWriter;
 import org.aksw.rdfunit.io.writer.RDFWriter;
 import org.aksw.rdfunit.io.writer.RDFWriterException;
+import org.aksw.rdfunit.io.writer.RDFWriterFactory;
 import org.aksw.rdfunit.model.interfaces.TestCase;
 import org.aksw.rdfunit.services.PrefixNSService;
 import org.aksw.rdfunit.sources.TestSource;
@@ -20,7 +22,6 @@
 import org.aksw.rdfunit.tests.executors.monitors.SimpleTestExecutorMonitor;
 import org.aksw.rdfunit.tests.generators.TestGeneratorExecutor;
 import org.aksw.rdfunit.utils.RDFUnitUtils;
-import org.aksw.rdfunit.utils.RDFWriterFactory;
 import org.aksw.rdfunit.validate.ParameterException;
 import org.aksw.rdfunit.validate.utils.ValidateUtils;
 import org.apache.commons.cli.CommandLine;
@@ -81,7 +82,7 @@ public static void main(String[] args) throws Exception {
         }
         checkNotNull (configuration );
 
-        if (!RDFUnitUtils.fileExists(configuration.getDataFolder())) {
+        if (!IOUtils.isFile(configuration.getDataFolder())) {
             log.error("Path : " + configuration.getDataFolder() + " does not exists, use -f argument");
             System.exit(1);
         }
diff --git a/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/ws/RDFUnitWebService.java b/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/ws/RDFUnitWebService.java
index 323686341..e6578e129 100644
--- a/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/ws/RDFUnitWebService.java
+++ b/rdfunit-validate/src/main/java/org/aksw/rdfunit/validate/ws/RDFUnitWebService.java
@@ -6,9 +6,9 @@
 import org.aksw.rdfunit.io.format.SerializationFormat;
 import org.aksw.rdfunit.io.writer.RDFWriter;
 import org.aksw.rdfunit.io.writer.RDFWriterException;
+import org.aksw.rdfunit.io.writer.RDFWriterFactory;
 import org.aksw.rdfunit.sources.TestSource;
 import org.aksw.rdfunit.tests.TestSuite;
-import org.aksw.rdfunit.utils.RDFWriterFactory;
 import org.aksw.rdfunit.validate.ParameterException;
 
 import javax.servlet.ServletException;
diff --git a/rdfunit-webdemo/src/main/java/org/aksw/rdfunit/webdemo/view/TestExecutionView.java b/rdfunit-webdemo/src/main/java/org/aksw/rdfunit/webdemo/view/TestExecutionView.java
index 8b82cb1d3..0507934e3 100644
--- a/rdfunit-webdemo/src/main/java/org/aksw/rdfunit/webdemo/view/TestExecutionView.java
+++ b/rdfunit-webdemo/src/main/java/org/aksw/rdfunit/webdemo/view/TestExecutionView.java
@@ -10,6 +10,7 @@
 import org.aksw.rdfunit.io.writer.RDFFileWriter;
 import org.aksw.rdfunit.io.writer.RDFStreamWriter;
 import org.aksw.rdfunit.io.writer.RDFWriterException;
+import org.aksw.rdfunit.io.writer.RDFWriterFactory;
 import org.aksw.rdfunit.model.interfaces.TestCase;
 import org.aksw.rdfunit.sources.TestSource;
 import org.aksw.rdfunit.tests.TestSuite;
@@ -21,7 +22,6 @@
 import org.aksw.rdfunit.tests.results.StatusTestCaseResult;
 import org.aksw.rdfunit.tests.results.TestCaseResult;
 import org.aksw.rdfunit.utils.RDFUnitUtils;
-import org.aksw.rdfunit.utils.RDFWriterFactory;
 import org.aksw.rdfunit.webdemo.RDFUnitDemoSession;
 import org.aksw.rdfunit.webdemo.utils.CommonAccessUtils;
 import org.aksw.rdfunit.webdemo.utils.WorkflowUtils;