diff --git a/pom.xml b/pom.xml
index d21619a..2c5ce33 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,6 +46,12 @@
 			<scope>provided</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>2.6.3</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.gcube.core</groupId>
 			<artifactId>common-encryption</artifactId>
diff --git a/src/main/java/org/gcube/common/workspacetaskexecutor/JsonUtil.java b/src/main/java/org/gcube/common/workspacetaskexecutor/JsonUtil.java
new file mode 100644
index 0000000..f09ed3d
--- /dev/null
+++ b/src/main/java/org/gcube/common/workspacetaskexecutor/JsonUtil.java
@@ -0,0 +1,55 @@
+/**
+ *
+ */
+package org.gcube.common.workspacetaskexecutor;
+
+import java.io.IOException;
+
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+
+
+/**
+ * The Class JsonUtil.
+ *
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * Apr 26, 2018
+ * @param <T> the generic type
+ */
+public class JsonUtil<T> {
+
+	private ObjectMapper mapper = new ObjectMapper();
+
+
+	/**
+	 * To json.
+	 *
+	 * @param obj the obj
+	 * @return the string
+	 * @throws JsonProcessingException the json processing exception
+	 */
+	public String toJSON(T obj) throws JsonProcessingException{
+
+		// Convert object to JSON string
+		return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);
+	}
+
+
+	/**
+	 * Read object.
+	 *
+	 * @param json the json
+	 * @param obj the obj
+	 * @return the t
+	 * @throws JsonParseException the json parse exception
+	 * @throws JsonMappingException the json mapping exception
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 */
+	public T readObject(String json, Class<T> obj) throws JsonParseException, JsonMappingException, IOException{
+		// Convert JSON string from file to Object
+		return mapper.readValue(json, obj);
+	}
+}
diff --git a/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java b/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
index 7b0a832..463db75 100644
--- a/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
+++ b/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
@@ -4,6 +4,7 @@ import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
 import org.gcube.common.workspacetaskexecutor.CheckableTask;
 import org.gcube.common.workspacetaskexecutor.ConfigurableTask;
 import org.gcube.common.workspacetaskexecutor.ExecutableTask;
+import org.gcube.common.workspacetaskexecutor.JsonUtil;
 import org.gcube.common.workspacetaskexecutor.TaskConfiguration;
 import org.gcube.common.workspacetaskexecutor.WsUtil;
 import org.gcube.common.workspacetaskexecutor.shared.ItemNotExecutable;
@@ -29,6 +30,8 @@ public class WorkspaceDataMinerTaskExecutor implements ExecutableTask<AlgorithmC
 
 	private String usernameOwner;
 
+	private JsonUtil<AlgorithmConfiguration> jsonUtil = new JsonUtil<AlgorithmConfiguration>();
+
 
 	/**
 	 * Instantiates a new workspace data miner task executor.
@@ -76,18 +79,25 @@ public class WorkspaceDataMinerTaskExecutor implements ExecutableTask<AlgorithmC
 	 * @see org.gcube.common.workspacetaskexecutor.CheckableTask#checkItemExecutable(java.lang.String)
 	 */
 	@Override
-	public AlgorithmConfiguration checkItemExecutable(String itemId) throws ItemNotExecutable, Exception {
+	public AlgorithmConfiguration checkItemExecutable(String workspaceItemId) throws ItemNotExecutable, Exception {
 
+		AlgorithmConfiguration conf = null;
 		checkOwner();
-		WorkspaceItem item = WsUtil.getItem(usernameOwner, itemId);
-		String propConfig = WsUtil.getPropertyValue(item, WS_TASK_TASK_CONF);
+		WorkspaceItem item = WsUtil.getItem(usernameOwner, workspaceItemId);
+		String propConfigValue = WsUtil.getPropertyValue(item, WS_TASK_TASK_CONF);
 
-		if(propConfig==null)
-			throw new ItemNotExecutable("The item id "+itemId+" has not a "+TaskConfiguration.class.getSimpleName());
+		if(propConfigValue==null || propConfigValue.isEmpty())
+			throw new ItemNotExecutable("The item id "+workspaceItemId+" has not a "+TaskConfiguration.class.getSimpleName());
 
-		//ObjectMapper mapper = new ObjectMapper();
+		try{
+			conf = jsonUtil.readObject(propConfigValue, AlgorithmConfiguration.class);
+		}catch(Exception e){
+			throw new ItemNotExecutable("The item id "+workspaceItemId+" has a wrong "+AlgorithmConfiguration.class.getSimpleName()+". Do you want create a new one?");
+		}
 
-		return null;
+		logger.info("Found configuration: "+conf);
+
+		return conf;
 	}
 
 
@@ -97,8 +107,16 @@ public class WorkspaceDataMinerTaskExecutor implements ExecutableTask<AlgorithmC
 	@Override
 	public Boolean removeTaskConfig(String workspaceItemId) throws ItemNotExecutable, Exception {
 
-		// TODO Auto-generated method stub
-		return null;
+		WorkspaceItem item = WsUtil.getItem(usernameOwner, workspaceItemId);
+		String propConfig = WsUtil.getPropertyValue(item, WS_TASK_TASK_CONF);
+
+		if(propConfig==null || propConfig.isEmpty())
+			throw new ItemNotExecutable("The item id "+workspaceItemId+" has not a "+AlgorithmConfiguration.class.getSimpleName());
+
+		WsUtil.setPropertyValue(item, WS_TASK_TASK_CONF, null);
+		logger.info("Set property value "+WS_TASK_TASK_CONF+" as null for the workspace item id: "+workspaceItemId);
+		return true;
+
 	}
 
 	/* (non-Javadoc)
@@ -107,16 +125,28 @@ public class WorkspaceDataMinerTaskExecutor implements ExecutableTask<AlgorithmC
 	@Override
 	public Boolean addTaskConfig(AlgorithmConfiguration config) throws ItemNotExecutable, Exception {
 
-		// TODO Auto-generated method stub
-		return null;
+		WorkspaceItem item = WsUtil.getItem(usernameOwner, config.getWorkspaceItemId());
+		String jsonConfValue = null;
+
+		try{
+			jsonConfValue = jsonUtil.toJSON(config);
+		}catch(Exception e){
+			throw new Exception("This "+config+" is wrong!. Please create a new one");
+		}
+
+		if(jsonConfValue!=null){
+			WsUtil.setPropertyValue(item, WS_TASK_TASK_CONF, jsonConfValue);
+			return true;
+		}
+
+		return false;
 	}
 
 	/* (non-Javadoc)
 	 * @see org.gcube.common.workspacetaskexecutor.ExecutableTask#doRun(java.lang.String)
 	 */
 	@Override
-	public AlgorithmConfiguration doRun(String itemId)
-		throws ItemNotExecutable, Exception {
+	public AlgorithmConfiguration doRun(String itemId) throws ItemNotExecutable, Exception {
 
 		// TODO Auto-generated method stub
 		return null;