diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/Operation.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/Operation.java
index d56dc0daa9..04be15b502 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/Operation.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/Operation.java
@@ -119,5 +119,17 @@ public class Operation implements Serializable {
         this.payLoad = payLoad;
     }
 
+    @Override
+    public String toString() {
+        return "Operation{" +
+                "code='" + code + '\'' +
+                ", type=" + type +
+                ", id=" + id +
+                ", status=" + status +
+                ", receivedTimeStamp='" + receivedTimeStamp + '\'' +
+                ", createdTimeStamp='" + createdTimeStamp + '\'' +
+                ", isEnabled=" + isEnabled +
+                '}';
+    }
 
 }
\ No newline at end of file
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
index 70ccd8e113..a7680c42d9 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
@@ -18,6 +18,8 @@
 package org.wso2.carbon.device.mgt.common.operation.mgt;
 
 import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.DeviceManagementException;
+
 import java.util.List;
 
 /**
@@ -34,8 +36,8 @@ public interface OperationManager {
      * @throws OperationManagementException If some unusual behaviour is observed while adding the
      * operation
      */
-    public boolean addOperation(Operation operation,
-                                List<DeviceIdentifier> devices) throws OperationManagementException;
+    public boolean addOperation(Operation operation, List<DeviceIdentifier> devices) throws
+            OperationManagementException;
 
     /**
      * Method to retrieve the list of all operations to a device.
@@ -60,4 +62,15 @@ public interface OperationManager {
 
     public void updateOperation(int operationId, Operation.Status operationStatus) throws OperationManagementException;
 
+    public void deleteOperation(int operationId) throws OperationManagementException;
+
+    public Operation getOperationByDeviceAndOperationId(DeviceIdentifier deviceId, int operationId)
+            throws OperationManagementException;
+
+    public List<? extends Operation> getOperationsByDeviceAndStatus(DeviceIdentifier identifier,
+            Operation.Status status) throws OperationManagementException, DeviceManagementException;
+
+    public Operation getOperation(int operationId) throws OperationManagementException;
+
+    public List<? extends Operation> getOperationsForStatus(Operation.Status status) throws OperationManagementException;
 }
\ No newline at end of file
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementServiceProviderImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementServiceProviderImpl.java
index 8039b2db63..4e077dcc03 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementServiceProviderImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementServiceProviderImpl.java
@@ -363,6 +363,34 @@ public class DeviceManagementServiceProviderImpl implements DeviceManagementServ
     @Override
     public void updateOperation(int operationId, Operation.Status operationStatus)
             throws OperationManagementException {
-        operationManager.updateOperation(operationId,operationStatus);
+        operationManager.updateOperation(operationId, operationStatus);
+    }
+
+    @Override
+    public void deleteOperation(int operationId) throws OperationManagementException {
+            operationManager.deleteOperation(operationId);
+    }
+
+    @Override
+    public Operation getOperationByDeviceAndOperationId(DeviceIdentifier deviceId, int operationId)
+            throws OperationManagementException {
+        return operationManager.getOperationByDeviceAndOperationId(deviceId, operationId);
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsByDeviceAndStatus(DeviceIdentifier identifier,
+            Operation.Status status) throws OperationManagementException, DeviceManagementException {
+        return operationManager.getOperationsByDeviceAndStatus(identifier, status);
+    }
+
+    @Override
+    public Operation getOperation(int operationId) throws OperationManagementException {
+        return operationManager.getOperation(operationId);
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsForStatus(Operation.Status status)
+            throws OperationManagementException {
+        return operationManager.getOperationsForStatus(status);
     }
 }
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
index 6ada7c3e7f..d2fa9bf95b 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
@@ -21,6 +21,7 @@ package org.wso2.carbon.device.mgt.core.operation.mgt;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.DeviceManagementException;
 import org.wso2.carbon.device.mgt.common.operation.mgt.Operation;
 import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementException;
 import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManager;
@@ -65,6 +66,13 @@ public class OperationManagerImpl implements OperationManager {
     @Override
     public boolean addOperation(Operation operation,
             List<DeviceIdentifier> devices) throws OperationManagementException {
+
+        if (log.isDebugEnabled()){
+            log.debug("operation:["+operation.toString()+"]");
+            for(DeviceIdentifier deviceIdentifier:devices){
+                log.debug("device identifier id:["+deviceIdentifier.getId()+"] type:["+deviceIdentifier.getType()+"]");
+            }
+        }
         try {
             OperationManagementDAOFactory.beginTransaction();
 
@@ -79,6 +87,7 @@ public class OperationManagerImpl implements OperationManager {
             OperationManagementDAOFactory.commitTransaction();
             return true;
         } catch (OperationManagementDAOException e) {
+            log.error("Error occurred while adding operation: ",e);
             try {
                 OperationManagementDAOFactory.rollbackTransaction();
             } catch (OperationManagementDAOException e1) {
@@ -86,6 +95,7 @@ public class OperationManagerImpl implements OperationManager {
             }
             throw new OperationManagementException("Error occurred while adding operation", e);
         } catch (DeviceManagementDAOException e) {
+            log.error("Error occurred while adding operation device mapping: ",e);
             try {
                 OperationManagementDAOFactory.rollbackTransaction();
             } catch (OperationManagementDAOException e1) {
@@ -123,19 +133,31 @@ public class OperationManagerImpl implements OperationManager {
     }
 
     @Override
-    public List<? extends Operation> getPendingOperations(
-            DeviceIdentifier deviceId) throws OperationManagementException {
+    public List<? extends Operation> getPendingOperations(DeviceIdentifier deviceId)
+            throws OperationManagementException {
+
+        if (log.isDebugEnabled()){
+           log.debug("device identifier id:["+deviceId.getId()+"] type:["+deviceId.getType()+"]");
+        }
+
         try {
+            Device device;
+            device = deviceDAO.getDevice(deviceId);
             List<Operation> operations = new ArrayList<Operation>();
-            List<? extends org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation> dtoOperationList = operationDAO
-                    .getOperationsForStatus(org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Status.PENDING);
+            List<? extends org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation> dtoOperationList =
+                    operationDAO.getOperationsByDeviceAndStatus(device.getId(), org.wso2.carbon.device.mgt.core.dto
+                            .operation.mgt.Operation.Status.PENDING);
             Operation operation;
             for (org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation : dtoOperationList) {
                 operation = OperationDAOUtil.convertOperation(dtoOperation);
                 operations.add(operation);
             }
-
             return operations;
+        } catch (DeviceManagementDAOException deviceDAOException) {
+            String errorMsg = "Error occurred while retrieving the device " +
+                    "for device Identifier type -'" + deviceId.getType() + "' and device Id '" + deviceId.getId();
+            log.error(errorMsg, deviceDAOException);
+            throw new OperationManagementException(errorMsg, deviceDAOException);
         } catch (OperationManagementDAOException e) {
             throw new OperationManagementException("Error occurred while retrieving the list of " +
                     "pending operations assigned for '" + deviceId.getType() + "' device '" +
@@ -145,10 +167,17 @@ public class OperationManagerImpl implements OperationManager {
 
     @Override
     public Operation getNextPendingOperation(DeviceIdentifier deviceId) throws OperationManagementException {
+
+        if (log.isDebugEnabled()){
+            log.debug("device identifier id:["+deviceId.getId()+"] type:["+deviceId.getType()+"]");
+        }
         try {
             org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation = operationDAO
                     .getNextOperation(deviceId);
-            Operation operation = OperationDAOUtil.convertOperation(dtoOperation);
+            Operation operation = null;
+            if (dtoOperation != null) {
+                operation = OperationDAOUtil.convertOperation(dtoOperation);
+            }
             return operation;
         } catch (OperationManagementDAOException e) {
             throw new OperationManagementException("Error occurred while retrieving next pending operation", e);
@@ -159,11 +188,19 @@ public class OperationManagerImpl implements OperationManager {
     public void updateOperation(int operationId, Operation.Status operationStatus)
             throws OperationManagementException {
 
+        if (log.isDebugEnabled()){
+            log.debug("operation Id:"+operationId+" status:"+operationStatus);
+        }
+
         try {
             org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation = operationDAO.getOperation
                     (operationId);
+
+            if (dtoOperation == null){
+                throw new OperationManagementException("Operation not found for operation id:"+operationId);
+            }
             dtoOperation.setStatus(org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Status.valueOf
-                            (operationStatus.toString()));
+                    (operationStatus.toString()));
             OperationManagementDAOFactory.beginTransaction();
             operationDAO.updateOperation(dtoOperation);
             OperationManagementDAOFactory.commitTransaction();
@@ -173,10 +210,153 @@ public class OperationManagerImpl implements OperationManager {
             } catch (OperationManagementDAOException e1) {
                 log.warn("Error occurred while roll-backing the update operation transaction", e1);
             }
-            log.error("Error occurred while updating the operation: " + operationId);
+            log.error("Error occurred while updating the operation: " + operationId + " status:"+operationStatus,ex);
             throw new OperationManagementException("Error occurred while update operation", ex);
         }
+    }
+
+    @Override
+    public void deleteOperation(int operationId) throws OperationManagementException {
+
+        try {
+            OperationManagementDAOFactory.beginTransaction();
+            org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation operation = operationDAO.getOperation
+                    (operationId);
+
+            if (operation == null){
+                throw new OperationManagementException("Operation not found for operation id:"+ operationId);
+            }
+
+            if (operation.getType().equals(org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Type.COMMAND)) {
+                commandOperationDAO.deleteOperation(operationId);
+            } else if (operation.getType().equals(
+                    org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Type.CONFIG)) {
+                configOperationDAO.deleteOperation(operationId);
+            } else if (operation.getType().equals(org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Type
+                    .PROFILE)) {
+                profileOperationDAO.deleteOperation(operationId);
+            }
+            OperationManagementDAOFactory.commitTransaction();
+        } catch (OperationManagementDAOException ex) {
+            try {
+                OperationManagementDAOFactory.rollbackTransaction();
+            } catch (OperationManagementDAOException e1) {
+                log.warn("Error occurred while roll-backing the delete operation transaction", e1);
+            }
+            log.error("Error occurred while deleting the operation: " + operationId, ex);
+            throw new OperationManagementException("Error occurred while delete operation", ex);
+        }
+    }
+
+    @Override
+    public Operation getOperationByDeviceAndOperationId(DeviceIdentifier deviceId, int operationId)
+            throws OperationManagementException {
+
+        Device device;
+        Operation operation;
+
+        if (log.isDebugEnabled()){
+            log.debug("Device Type:"+deviceId.getType()+" Id:"+deviceId.getId());
+        }
+
+        try {
+            device = deviceDAO.getDevice(deviceId);
+            if (device == null){
+                throw new OperationManagementException("Device not found for given device identifier:"+deviceId.getId
+                        ()+" type:"+device.getDeviceType());
+            }
+            org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation = operationDAO
+                    .getOperationByDeviceAndId(device.getId(), operationId);
+
+            if (dtoOperation == null){
+                throw new OperationManagementException("Operation not found for operation Id:"+ operationId +" device" +
+                        " Id:"+device.getId());
+            }
+            operation = OperationDAOUtil.convertOperation(dtoOperation);
+        } catch (DeviceManagementDAOException deviceDAOException) {
+            String errorMsg = "Error occurred while retrieving the device " +
+                    "for device Identifier type -'" + deviceId.getType() + "' and device Id '" + deviceId.getId();
+            log.error(errorMsg, deviceDAOException);
+            throw new OperationManagementException(errorMsg, deviceDAOException);
+        } catch (OperationManagementDAOException e) {
+            throw new OperationManagementException("Error occurred while retrieving the list of " +
+                    "operations assigned for '" + deviceId.getType() + "' device '" + deviceId.getId() + "'", e);
+        }
+        return operation;
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsByDeviceAndStatus(DeviceIdentifier identifier,
+            Operation.Status status) throws OperationManagementException, DeviceManagementException {
+
+        try {
+            List<Operation> operations = new ArrayList<Operation>();
+            Device device = deviceDAO.getDevice(identifier);
+
+            if (device == null){
+                throw new DeviceManagementException("Device not found for device id:"+identifier.getId()+" " +
+                        "type:"+identifier.getType());
+            }
+            List<? extends org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation> dtoOperationList = operationDAO
+                    .getOperationsByDeviceAndStatus(device.getId(),
+                            org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Status
+                                    .valueOf(status.toString()));
+            Operation operation;
+            for (org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation : dtoOperationList) {
+                operation = OperationDAOUtil.convertOperation(dtoOperation);
+                operations.add(operation);
+            }
+            return operations;
+        } catch (DeviceManagementDAOException deviceDAOException) {
+            String errorMsg = "Error occurred while retrieving the device " +
+                    "for device Identifier type -'" + identifier.getType() + "' and device Id '" + identifier.getId();
+            log.error(errorMsg, deviceDAOException);
+            throw new OperationManagementException(errorMsg, deviceDAOException);
+        } catch (OperationManagementDAOException e) {
+            throw new OperationManagementException("Error occurred while retrieving the list of " +
+                    "operations assigned for '" + identifier.getType() + "' device '" +
+                    identifier.getId() + "' and status:" + status.toString(), e);
+        }
+    }
+
+    @Override
+    public Operation getOperation(int operationId) throws OperationManagementException {
+
+        Operation operation;
+        try {
+             org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation = operationDAO.getOperation
+                     (operationId);
+             if (dtoOperation == null){
+                 throw new OperationManagementException("Operation not found for given Id:"+operationId);
+             }
+             operation = OperationDAOUtil.convertOperation(dtoOperation);
+          } catch (OperationManagementDAOException e) {
+            String errorMsg = "Error occurred while retrieving the operation with operation Id '" + operationId;
+            log.error(errorMsg, e);
+            throw new OperationManagementException(errorMsg, e);
+        }
+        return operation;
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsForStatus(Operation.Status status)
+            throws OperationManagementException {
 
+        try {
+            List<Operation> operations = new ArrayList<Operation>();
+            List<? extends org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation> dtoOperationList =
+                    operationDAO.getOperationsForStatus(org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation.Status
+                            .valueOf(status.toString()));
+            Operation operation;
+            for (org.wso2.carbon.device.mgt.core.dto.operation.mgt.Operation dtoOperation : dtoOperationList) {
+                operation = OperationDAOUtil.convertOperation(dtoOperation);
+                operations.add(operation);
+            }
+            return operations;
+        } catch (OperationManagementDAOException e) {
+            throw new OperationManagementException("Error occurred while retrieving the list of " +
+                    "operations for status:'" + status.toString(), e);
+        }
     }
 
     private OperationDAO lookupOperationDAO(Operation operation) {
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/OperationDAO.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/OperationDAO.java
index 8883b71c86..bd7699e670 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/OperationDAO.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/OperationDAO.java
@@ -33,11 +33,10 @@ public interface OperationDAO {
 
     Operation getOperation(int operationId) throws OperationManagementDAOException;
 
-    Operation getOperationByDeviceAndId(int deviceId,
-            int operationId) throws OperationManagementDAOException;
+    Operation getOperationByDeviceAndId(int deviceId, int operationId) throws OperationManagementDAOException;
 
-    List<? extends Operation> getOperationsByDeviceAndStatus(int deviceId, Operation.Status status)  throws
-            OperationManagementDAOException;
+    List<? extends Operation> getOperationsByDeviceAndStatus(int deviceId, Operation.Status status)
+            throws OperationManagementDAOException;
 
     List<? extends Operation> getOperationsForDevice(int deviceId) throws OperationManagementDAOException;
 
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
index e6d8ac0c41..d9ae0639fb 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
@@ -160,8 +160,8 @@ public class OperationDAOImpl implements OperationDAO {
             log.error(errorMsg, e);
             throw new OperationManagementDAOException(errorMsg, e);
         } catch (SQLException e) {
-            String errorMsg = "SQL Error occurred while retrieving the operation object " +
-                    "available for the id '" + id;
+            String errorMsg = "SQL Error occurred while retrieving the operation object " + "available for the id '"
+                    + id;
             log.error(errorMsg, e);
             throw new OperationManagementDAOException(errorMsg, e);
         } finally {
@@ -248,7 +248,7 @@ public class OperationDAOImpl implements OperationDAO {
 
         PreparedStatement stmt = null;
         ResultSet rs = null;
-        Operation operation = null;
+        Operation operation;
 
         ByteArrayInputStream bais;
         ObjectInputStream ois;
@@ -393,7 +393,7 @@ public class OperationDAOImpl implements OperationDAO {
 
         PreparedStatement stmt = null;
         ResultSet rs = null;
-        Operation operation = null;
+        Operation operation;
 
         ByteArrayInputStream bais;
         ObjectInputStream ois;
@@ -459,6 +459,7 @@ public class OperationDAOImpl implements OperationDAO {
 
     @Override
     public Operation getNextOperation(DeviceIdentifier deviceId) throws OperationManagementDAOException {
+
         PreparedStatement stmt = null;
         ResultSet rs = null;
         try {
@@ -478,8 +479,8 @@ public class OperationDAOImpl implements OperationDAO {
             rs = stmt.executeQuery();
 
             Operation operation = null;
-            if (rs.next()) {
 
+            if (rs.next()) {
                 operation = new Operation();
                 operation.setType(this.getType(rs.getString("TYPE")));
                 operation.setStatus(this.getStatus(rs.getString("STATUS")));
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementServiceImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementServiceImpl.java
index f70c76bd11..a55fda0a79 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementServiceImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementServiceImpl.java
@@ -23,10 +23,10 @@ import org.wso2.carbon.device.mgt.common.license.mgt.LicenseManagementException;
 import org.wso2.carbon.device.mgt.common.operation.mgt.Operation;
 import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementException;
 import org.wso2.carbon.device.mgt.core.internal.DeviceManagementDataHolder;
-
+import org.wso2.carbon.device.mgt.core.operation.mgt.OperationManagerImpl;
 import java.util.List;
 
-public class DeviceManagementServiceImpl implements DeviceManagementService {
+public class DeviceManagementServiceImpl implements DeviceManagementService{
 
     @Override
     public String getProviderType() {
@@ -142,6 +142,36 @@ public class DeviceManagementServiceImpl implements DeviceManagementService {
                 operationStatus);
     }
 
+    @Override
+    public void deleteOperation(int operationId) throws OperationManagementException {
+        DeviceManagementDataHolder.getInstance().getDeviceManagementProvider().deleteOperation(operationId);
+    }
+
+    @Override
+    public Operation getOperationByDeviceAndOperationId(DeviceIdentifier deviceId,
+            int operationId) throws OperationManagementException {
+        return DeviceManagementDataHolder.getInstance().getDeviceManagementProvider()
+                .getOperationByDeviceAndOperationId(deviceId, operationId);
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsByDeviceAndStatus(DeviceIdentifier identifier,
+            Operation.Status status) throws OperationManagementException, DeviceManagementException {
+        return DeviceManagementDataHolder.getInstance().getDeviceManagementProvider().getOperationsByDeviceAndStatus
+                (identifier, status);
+    }
+
+    @Override
+    public Operation getOperation(int operationId) throws OperationManagementException {
+        return DeviceManagementDataHolder.getInstance().getDeviceManagementProvider().getOperation(operationId);
+    }
+
+    @Override
+    public List<? extends Operation> getOperationsForStatus(Operation.Status status)
+            throws OperationManagementException {
+        return DeviceManagementDataHolder.getInstance().getDeviceManagementProvider().getOperationsForStatus(status);
+    }
+
     @Override
     public void sendEnrolmentInvitation(
             EmailMessageProperties emailMessageProperties) throws DeviceManagementException {