diff --git a/src/main/java/de/kosit/validationtool/api/Result.java b/src/main/java/de/kosit/validationtool/api/Result.java
index 5581e29..dcbe19d 100644
--- a/src/main/java/de/kosit/validationtool/api/Result.java
+++ b/src/main/java/de/kosit/validationtool/api/Result.java
@@ -2,6 +2,7 @@ package de.kosit.validationtool.api;
 
 import java.util.List;
 
+import org.oclc.purl.dsdl.svrl.FailedAssert;
 import org.oclc.purl.dsdl.svrl.SchematronOutput;
 import org.w3c.dom.Document;
 
@@ -69,6 +70,13 @@ public interface Result {
      */
     List<SchematronOutput> getSchematronResult();
 
+    /**
+     * Returns {@link org.oclc.purl.dsdl.svrl.FailedAssert FailedAsserts} of a schematron evaluation.
+     * 
+     * @return list of {@link org.oclc.purl.dsdl.svrl.FailedAssert FailedAsserts}, if any, empty list otherwise
+     */
+    List<FailedAssert> getFailedAsserts();
+
     /**
      * Liefert ein true, wenn keine Schema-Violations vorhanden sind.
      *
@@ -82,4 +90,11 @@ public interface Result {
      * @return true wenn well-formed
      */
     boolean isWellformed();
+
+    /**
+     * Returns true, if schematron has been checked and the result does not contain any {@link FailedAssert FailedAsserts}.
+     * 
+     * @return true, if valid
+     */
+    boolean isSchematronValid();
 }
diff --git a/src/main/java/de/kosit/validationtool/impl/DefaultResult.java b/src/main/java/de/kosit/validationtool/impl/DefaultResult.java
index b878cee..e8be8ac 100644
--- a/src/main/java/de/kosit/validationtool/impl/DefaultResult.java
+++ b/src/main/java/de/kosit/validationtool/impl/DefaultResult.java
@@ -127,12 +127,19 @@ public class DefaultResult implements Result {
      * 
      * @return die {@link FailedAssert}
      */
+    @Override
     public List<FailedAssert> getFailedAsserts() {
         return filterSchematronResult(FailedAssert.class);
     }
 
     private <T> List<T> filterSchematronResult(final Class<T> type) {
-        return getSchematronResult().stream().filter(type::isInstance).map(type::cast).collect(Collectors.toList());
+        return getSchematronResult() != null
+                ? getSchematronResult().stream().filter(type::isInstance).map(type::cast).collect(Collectors.toList())
+                : Collections.emptyList();
     }
 
+    @Override
+    public boolean isSchematronValid() {
+        return getSchematronResult() != null && getFailedAsserts().isEmpty();
+    }
 }