diff --git a/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/Field.java b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/Field.java
new file mode 100644
index 000000000..a3be6313f
--- /dev/null
+++ b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/Field.java
@@ -0,0 +1,66 @@
+/*
+ *
+ *    ******************************************************************************
+ *    *
+ *    * This program and the accompanying materials are made available under the
+ *    * terms of the Apache License, Version 2.0 which is available at
+ *    * https://www.apache.org/licenses/LICENSE-2.0.
+ *    *
+ *    *  See the NOTICE file distributed with this work for additional
+ *    *  information regarding copyright ownership.
+ *    * Unless required by applicable law or agreed to in writing, software
+ *    * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *    * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *    * License for the specific language governing permissions and limitations
+ *    * under the License.
+ *    *
+ *    * SPDX-License-Identifier: Apache-2.0
+ *    *****************************************************************************
+ *
+ */
+
+package net.brutex.cavis.dvec.api;
+
+import java.nio.Buffer;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import net.brutex.cavis.dvec.api.exceptions.DVecException;
+
+/**
+ * Abtract implementation of the Field interface {@see FieldInterface}, that handles all data storage
+ * in memory and adds basic error handling.
+ *
+ * @author Brian Rosenberger
+ * @since 1.0
+ */
+public abstract class Field<T extends Buffer> implements FieldInterface<T> {
+
+  /**
+   * {@inheritDoc}
+   *
+   * @param start  Index of starting position, zero based
+   * @param length how many fields to read
+   * @return the list of Buffer
+   */
+  @Override
+  public T read(long start, long length) throws DVecException {
+    if (start<0 || start>internalStorage.capacity()-1 ) {
+      throw new DVecException("Read on Field start position is out of bounds.");
+    }
+    if (start+length> internalStorage.capacity()) {
+      throw new DVecException("Read on Field exceeds field length");
+    }
+  return null;
+  }
+
+  @Override
+  public void write(long pos, T buffer) {
+
+  }
+
+  private ByteBuffer internalStorage = null;
+
+
+
+}
diff --git a/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/FieldMetadata.java b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/FieldMetadata.java
new file mode 100644
index 000000000..9dcd12cdf
--- /dev/null
+++ b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/FieldMetadata.java
@@ -0,0 +1,31 @@
+/*
+ *
+ *    ******************************************************************************
+ *    *
+ *    * This program and the accompanying materials are made available under the
+ *    * terms of the Apache License, Version 2.0 which is available at
+ *    * https://www.apache.org/licenses/LICENSE-2.0.
+ *    *
+ *    *  See the NOTICE file distributed with this work for additional
+ *    *  information regarding copyright ownership.
+ *    * Unless required by applicable law or agreed to in writing, software
+ *    * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *    * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *    * License for the specific language governing permissions and limitations
+ *    * under the License.
+ *    *
+ *    * SPDX-License-Identifier: Apache-2.0
+ *    *****************************************************************************
+ *
+ */
+
+package net.brutex.cavis.dvec.api;
+
+/**
+ * tbd.
+ * @author Brian Rosenberger
+ *
+ */
+public interface FieldMetadata {
+
+}
diff --git a/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/exceptions/DVecException.java b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/exceptions/DVecException.java
new file mode 100644
index 000000000..e1eb4ec28
--- /dev/null
+++ b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/exceptions/DVecException.java
@@ -0,0 +1,32 @@
+/*
+ *
+ *    ******************************************************************************
+ *    *
+ *    * This program and the accompanying materials are made available under the
+ *    * terms of the Apache License, Version 2.0 which is available at
+ *    * https://www.apache.org/licenses/LICENSE-2.0.
+ *    *
+ *    *  See the NOTICE file distributed with this work for additional
+ *    *  information regarding copyright ownership.
+ *    * Unless required by applicable law or agreed to in writing, software
+ *    * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *    * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *    * License for the specific language governing permissions and limitations
+ *    * under the License.
+ *    *
+ *    * SPDX-License-Identifier: Apache-2.0
+ *    *****************************************************************************
+ *
+ */
+
+package net.brutex.cavis.dvec.api.exceptions;
+
+import lombok.Getter;
+
+public class DVecException extends Exception {
+
+  @Getter private final String message;
+  public DVecException(String message) {
+    this.message = message;
+  }
+}
diff --git a/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/package-info.java b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/package-info.java
new file mode 100644
index 000000000..190b22052
--- /dev/null
+++ b/cavis-datavec/dvec-api/src/main/java/net/brutex/cavis/dvec/api/package-info.java
@@ -0,0 +1,35 @@
+/*
+ *
+ *    ******************************************************************************
+ *    *
+ *    * This program and the accompanying materials are made available under the
+ *    * terms of the Apache License, Version 2.0 which is available at
+ *    * https://www.apache.org/licenses/LICENSE-2.0.
+ *    *
+ *    *  See the NOTICE file distributed with this work for additional
+ *    *  information regarding copyright ownership.
+ *    * Unless required by applicable law or agreed to in writing, software
+ *    * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *    * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *    * License for the specific language governing permissions and limitations
+ *    * under the License.
+ *    *
+ *    * SPDX-License-Identifier: Apache-2.0
+ *    *****************************************************************************
+ *
+ */
+
+/**
+ * <p>
+ * The data vectorization api (dvec-api) defines a data structure in analogy to Hadoop and is
+ * derived from the dl4j datavec library.<br> The main concept is around
+ * </p>
+ * <ul>
+ *  <li>InputFormat</li>
+ *  <li>InputSplit</li>
+ *  <li>RecordReader, Records and Writable</li>
+ * </ul>
+ *
+ * @author Brian Rosenberger &lt;bru@brutex.de&gt;
+ */
+package net.brutex.cavis.dvec.api;
\ No newline at end of file