diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceAssigmentDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceAssigmentDAO.java
new file mode 100644
index 000000000..7fcfb95af
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceAssigmentDAO.java
@@ -0,0 +1,18 @@
+package org.navalplanner.business.advance.daos;
+
+import org.navalplanner.business.advance.entities.AdvanceAssigment;
+import org.navalplanner.business.common.daos.impl.GenericDaoHibernate;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Repository;
+
+/**
+ * Dao for {@link AdvanceAssigment}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@Repository
+@Scope(BeanDefinition.SCOPE_SINGLETON)
+public class AdvanceAssigmentDAO extends
+        GenericDaoHibernate<AdvanceAssigment, Long> implements
+        IAdvanceAssigmentDAO {
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceDaoRegistry.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceDaoRegistry.java
new file mode 100644
index 000000000..2bcb674f3
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceDaoRegistry.java
@@ -0,0 +1,44 @@
+package org.navalplanner.business.advance.daos;
+
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * A registry of Advance DAOs. Classes in which dependency injection (DI) is
+ * not directly supported by Spring (e.g. entities) must use this class to
+ * access resource DAOs. For the rest of classes (e.g. services, tests, etc.),
+ * Spring DI is a more convenient option.
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+
+public class AdvanceDaoRegistry {
+
+    private static AdvanceDaoRegistry instance = new AdvanceDaoRegistry();
+
+    @Autowired
+    private IAdvanceAssigmentDAO advanceAssigmentDao;
+
+    @Autowired
+    private IAdvanceTypeDAO advanceTypeDao;
+
+    @Autowired
+    private IAdvanceMeasurementDAO advanceMeasurementDao;
+
+    private AdvanceDaoRegistry() {
+    }
+
+    public static AdvanceDaoRegistry getInstance() {
+        return instance;
+    }
+
+    public static IAdvanceMeasurementDAO getAdvanceMeasurementDao() {
+        return getInstance().advanceMeasurementDao;
+    }
+
+    public static IAdvanceTypeDAO getAdvanceTypeDao() {
+        return getInstance().advanceTypeDao;
+    }
+
+    public static IAdvanceAssigmentDAO getAdvanceAssigmentDao() {
+        return getInstance().advanceAssigmentDao;
+    }
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceMeasurementDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceMeasurementDAO.java
new file mode 100644
index 000000000..564603bd6
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceMeasurementDAO.java
@@ -0,0 +1,16 @@
+package org.navalplanner.business.advance.daos;
+
+import org.navalplanner.business.common.daos.impl.GenericDaoHibernate;
+import org.navalplanner.business.advance.entities.AdvanceMeasurement;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Repository;
+
+/**
+ * Dao for {@link AdvanceMeasurement}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@Repository
+@Scope(BeanDefinition.SCOPE_SINGLETON)
+public class AdvanceMeasurementDAO extends GenericDaoHibernate<AdvanceMeasurement, Long> implements IAdvanceMeasurementDAO{
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceTypeDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceTypeDAO.java
new file mode 100644
index 000000000..6ee33b163
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/AdvanceTypeDAO.java
@@ -0,0 +1,16 @@
+package org.navalplanner.business.advance.daos;
+
+import org.navalplanner.business.common.daos.impl.GenericDaoHibernate;
+import org.navalplanner.business.advance.entities.AdvanceType;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Repository;
+
+/**
+ * Dao for {@link AdvanceType}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@Repository
+@Scope(BeanDefinition.SCOPE_SINGLETON)
+public class AdvanceTypeDAO extends GenericDaoHibernate<AdvanceType, Long> implements IAdvanceTypeDAO{
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceAssigmentDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceAssigmentDAO.java
new file mode 100644
index 000000000..109074378
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceAssigmentDAO.java
@@ -0,0 +1,14 @@
+package org.navalplanner.business.advance.daos;
+
+import java.util.List;
+import org.navalplanner.business.common.daos.IGenericDao;
+import org.navalplanner.business.orders.entities.OrderElement;
+import org.navalplanner.business.advance.entities.AdvanceAssigment;
+
+/**
+ * Contract for {@link AdvanceAssigmentDao}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+
+public interface IAdvanceAssigmentDAO extends IGenericDao<AdvanceAssigment, Long> {
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceMeasurementDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceMeasurementDAO.java
new file mode 100644
index 000000000..e30a6703d
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceMeasurementDAO.java
@@ -0,0 +1,12 @@
+package org.navalplanner.business.advance.daos;
+
+import org.navalplanner.business.common.daos.IGenericDao;
+import org.navalplanner.business.advance.entities.AdvanceMeasurement;
+
+/**
+ * Contract for {@link AdvanceMeasurementDao}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+
+public interface IAdvanceMeasurementDAO extends IGenericDao<AdvanceMeasurement, Long> {
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceTypeDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceTypeDAO.java
new file mode 100644
index 000000000..23fe18b08
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/daos/IAdvanceTypeDAO.java
@@ -0,0 +1,12 @@
+package org.navalplanner.business.advance.daos;
+
+import org.navalplanner.business.common.daos.IGenericDao;
+import org.navalplanner.business.advance.entities.AdvanceType;
+
+/**
+ * Contract for {@link AdvanceTypeDao}
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+
+public interface IAdvanceTypeDAO extends IGenericDao<AdvanceType, Long>{
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceAssigment.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceAssigment.java
new file mode 100644
index 000000000..2d2a7de0a
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceAssigment.java
@@ -0,0 +1,79 @@
+package org.navalplanner.business.advance.entities;
+
+import java.math.BigDecimal;
+import java.util.Set;
+
+import org.navalplanner.business.orders.entities.OrderElement;
+import org.navalplanner.business.workreports.entities.WorkReportLine;
+
+public class AdvanceAssigment{
+    private Long id;
+
+    @SuppressWarnings("unused")
+    private long version;
+
+    private boolean reportGlobalAdvance;
+
+    private BigDecimal maxValue;
+
+    private OrderElement orderElement;
+
+    private AdvanceType advanceType;
+
+    Set<AdvanceMeasurement> advanceMeasurements;
+
+    public AdvanceAssigment(boolean reportGlobalAdvance, BigDecimal maxValue) {
+        this.reportGlobalAdvance = reportGlobalAdvance;
+        this.maxValue = maxValue;
+        this.maxValue.setScale(2);
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public long getVersion() {
+        return version;
+    }
+
+    public void setMaxValue(BigDecimal maxValue) {
+        this.maxValue = maxValue;
+        this.maxValue.setScale(2);
+    }
+
+    public BigDecimal getMaxValue() {
+        return this.maxValue;
+    }
+
+    public void setReportGlobalAdvance(boolean reportGlobalAdvance) {
+        this.reportGlobalAdvance = reportGlobalAdvance;
+    }
+
+    public boolean getReportGlobalAdvance() {
+        return this.reportGlobalAdvance;
+    }
+
+    public void setOrderElement(OrderElement orderElement) {
+        this.orderElement = orderElement;
+    }
+
+    public OrderElement getOrderElement() {
+        return this.orderElement;
+    }
+
+    public void setAdvanceType(AdvanceType advanceType) {
+        this.advanceType = advanceType;
+    }
+
+    public AdvanceType getAdvanceType() {
+        return this.advanceType;
+    }
+
+    public void setAdvanceMeasurements(Set<AdvanceMeasurement> advanceMeasurements) {
+        this.advanceMeasurements = advanceMeasurements;
+    }
+
+    public Set<AdvanceMeasurement> getAdvanceMeasurements() {
+        return this.advanceMeasurements;
+    }
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceMeasurement.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceMeasurement.java
new file mode 100644
index 000000000..4a968bd2e
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceMeasurement.java
@@ -0,0 +1,56 @@
+package org.navalplanner.business.advance.entities;
+
+import java.math.BigDecimal;
+import java.util.Date;
+
+public class AdvanceMeasurement {
+    private Long id;
+
+    @SuppressWarnings("unused")
+    private long version;
+
+    private Date date;
+
+    private BigDecimal value;
+
+    private AdvanceAssigment advanceAssigment;
+
+    public AdvanceMeasurement(Date date, BigDecimal value) {
+        this.date = date;
+        this.value = value;
+        this.value.setScale(2);
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public long getVersion() {
+        return version;
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public Date getDate() {
+        return this.date;
+    }
+
+    public void setValue(BigDecimal value) {
+        this.value = value;
+        this.value.setScale(2);
+    }
+
+    public BigDecimal getValue() {
+        return this.value;
+    }
+
+    public void setAdvanceAssigment(AdvanceAssigment advanceAssigment) {
+        this.advanceAssigment = advanceAssigment;
+    }
+
+    public AdvanceAssigment getAdvanceAssigment() {
+        return this.advanceAssigment;
+    }
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceType.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceType.java
new file mode 100644
index 000000000..d7ea5448a
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/entities/AdvanceType.java
@@ -0,0 +1,64 @@
+package org.navalplanner.business.advance.entities;
+
+import java.math.BigDecimal;
+import org.navalplanner.business.orders.entities.OrderElement;
+
+/**
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+
+public class AdvanceType {
+    private Long id;
+
+    @SuppressWarnings("unused")
+    private long version;
+
+    private String unitName;
+
+    private BigDecimal defaultMaxValue;
+
+    private boolean updatable;
+
+    public AdvanceType(String unitName, BigDecimal defaultMaxValue,boolean updatable) {
+        this.unitName = unitName;
+        this.defaultMaxValue = defaultMaxValue;
+        this.defaultMaxValue.setScale(2);
+        this.updatable = updatable;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public long getVersion() {
+        return version;
+    }
+
+    public void setUnitName(String unitName) {
+        this.unitName = unitName;
+    }
+
+    public String getUnitName() {
+        return this.unitName;
+    }
+
+    public void setDefaultMaxValue(BigDecimal defaultMaxValue) {
+        this.defaultMaxValue = defaultMaxValue;
+        this.defaultMaxValue.setScale(2);
+    }
+
+    public BigDecimal getDefaultMaxValue() {
+        return this.defaultMaxValue;
+    }
+
+    public void setUpdatable(boolean updatable) {
+        this.updatable = updatable;
+    }
+
+    public boolean getUpdatable() {
+        return this.updatable;
+    }
+
+    public void doPropagateAdvaceToParent(OrderElement orderElement) {
+    }
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateAdvanceAssigmentForOrderElementException.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateAdvanceAssigmentForOrderElementException.java
new file mode 100644
index 000000000..52078b47b
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateAdvanceAssigmentForOrderElementException.java
@@ -0,0 +1,31 @@
+package org.navalplanner.business.advance.exceptions;
+
+/**
+ * An exception for modeling a problem with duplicated advance assigment of the
+ * same type for an order element. It contains a message, the key of the
+ * instance, and its class name.
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@SuppressWarnings("serial")
+public class DuplicateAdvanceAssigmentForOrderElementException extends
+        Exception {
+
+    private Object key;
+    private String className;
+
+    public DuplicateAdvanceAssigmentForOrderElementException(
+            String specificMessage, Object key, String className) {
+        super(specificMessage + " (key = '" + key + "' - className = '"
+                + className + "')");
+        this.key = key;
+        this.className = className;
+    }
+
+    public Object getKey() {
+        return key;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateValueTrueReportGlobalAdvanceException.java b/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateValueTrueReportGlobalAdvanceException.java
new file mode 100644
index 000000000..5d8a2f47e
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/advance/exceptions/DuplicateValueTrueReportGlobalAdvanceException.java
@@ -0,0 +1,30 @@
+package org.navalplanner.business.advance.exceptions;
+
+/**
+ * An exception for modeling a problem with duplicated values to true for the
+ * property reportGlobalAdvance of the advanceAsigment class for an order
+ * element. It contains a message, the key of the instance, and its class name.
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@SuppressWarnings("serial")
+public class DuplicateValueTrueReportGlobalAdvanceException extends Exception {
+
+    private Object key;
+    private String className;
+
+    public DuplicateValueTrueReportGlobalAdvanceException(
+            String specificMessage, Object key, String className) {
+        super(specificMessage + " (key = '" + key + "' - className = '"
+                + className + "')");
+        this.key = key;
+        this.className = className;
+    }
+
+    public Object getKey() {
+        return key;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/IOrderElementDao.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/IOrderElementDao.java
index 055fb5ec2..1712ac5bc 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/IOrderElementDao.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/IOrderElementDao.java
@@ -1,14 +1,14 @@
 package org.navalplanner.business.orders.daos;
+import java.util.List;
 
 import org.navalplanner.business.common.daos.IGenericDao;
 import org.navalplanner.business.orders.entities.OrderElement;
-import org.navalplanner.business.resources.entities.Worker;
 
 /**
  * Contract for {@link OrderElementDao}
- *
  * @author Manuel Rego Casasnovas <mrego@igalia.com>
  * @author Diego Pino García <dpino@igalia.com>
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  */
 public interface IOrderElementDao extends IGenericDao<OrderElement, Long> {
     public OrderElement findByCode(String code);
@@ -21,4 +21,6 @@ public interface IOrderElementDao extends IGenericDao<OrderElement, Long> {
      * @return the {@link OrderElement} found
      */
     public OrderElement findByCode(OrderElement parent, String code);
+    public List<OrderElement> findParent(
+            OrderElement orderElement);
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrderElementDao.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrderElementDao.java
index 3b8ec7c15..b0af09670 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrderElementDao.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrderElementDao.java
@@ -1,5 +1,7 @@
 package org.navalplanner.business.orders.daos;
 
+import java.util.List;
+
 import org.hibernate.Criteria;
 import org.hibernate.criterion.Restrictions;
 import org.navalplanner.business.common.daos.impl.GenericDaoHibernate;
@@ -10,10 +12,10 @@ import org.springframework.stereotype.Repository;
 
 /**
  * Dao for {@link OrderElement}
- *
  * @author Manuel Rego Casasnovas <mrego@igalia.com>
  * @author Diego Pino García <dpino@igalia.com>
- */
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ **/
 @Repository
 @Scope(BeanDefinition.SCOPE_SINGLETON)
 public class OrderElementDao extends GenericDaoHibernate<OrderElement, Long>
@@ -31,4 +33,12 @@ public class OrderElementDao extends GenericDaoHibernate<OrderElement, Long>
         c.add(Restrictions.eq("parent", orderElement));
         return (OrderElement) c.uniqueResult();
     }
+
+    @Override
+    public List<OrderElement> findParent(OrderElement orderElement) {
+        Criteria c = getSession().createCriteria(OrderElement.class)
+                .createCriteria("children").add(
+                        Restrictions.idEq(orderElement.getId()));
+        return ((List<OrderElement>) c.list());
+    }
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrdersDaoRegistry.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrdersDaoRegistry.java
index fdecee2b5..e57cb3e4b 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrdersDaoRegistry.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/daos/OrdersDaoRegistry.java
@@ -17,6 +17,7 @@ public class OrdersDaoRegistry {
     @Autowired
     private IOrderDao order;
 
+    @Autowired
     private IOrderElementDao orderElement;
 
     private OrdersDaoRegistry() {
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
index 8f9cf032a..2f930ac37 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
@@ -7,6 +7,10 @@ import java.util.List;
 import java.util.Set;
 
 import org.hibernate.validator.NotEmpty;
+import org.navalplanner.business.advance.entities.AdvanceAssigment;
+import org.navalplanner.business.advance.exceptions.DuplicateAdvanceAssigmentForOrderElementException;
+import org.navalplanner.business.advance.exceptions.DuplicateValueTrueReportGlobalAdvanceException;
+import org.navalplanner.business.orders.daos.OrdersDaoRegistry;
 import org.navalplanner.business.planner.entities.TaskElement;
 
 public abstract class OrderElement {
@@ -28,6 +32,8 @@ public abstract class OrderElement {
 
     private String description;
 
+    private Set<AdvanceAssigment> advanceAssigments = new HashSet<AdvanceAssigment>();
+
     @NotEmpty
     private String code;
 
@@ -168,4 +174,67 @@ public abstract class OrderElement {
     public String getCode() {
         return code;
     }
-}
+
+    public void setAdvanceAssigments(Set<AdvanceAssigment> advanceAssigments) {
+        this.advanceAssigments = advanceAssigments;
+    }
+
+    public Set<AdvanceAssigment> getAdvanceAssigments() {
+        return this.advanceAssigments;
+    }
+
+    /**
+     * Validate if the advanceAssigment can be added to the order element.The
+     * list of advanceAssigments must be attached.
+     * @param advanceAssigment
+     *            must be attached
+     */
+    public void addAvanceAssigment(AdvanceAssigment newAdvanceAssigment)
+            throws Exception {
+        if (!this.advanceAssigments.isEmpty()) {
+            for (AdvanceAssigment advanceAssigment : getAdvanceAssigments()) {
+                if (advanceAssigment.getAdvanceType().getId() == newAdvanceAssigment
+                        .getAdvanceType().getId()) {
+                    System.out.println("bien");
+                    throw new DuplicateAdvanceAssigmentForOrderElementException(
+                            "Duplicate Advance Assigment For Order Element",
+                            this,
+                            "org.navalplanner.business.orders.entities.OrderElement");
+                }
+
+                if (advanceAssigment.getReportGlobalAdvance()
+                        && newAdvanceAssigment.getReportGlobalAdvance())
+                    throw new DuplicateValueTrueReportGlobalAdvanceException(
+                            "Duplicate Value True ReportGlobalAdvance For Order Element",
+                            this,
+                            "org.navalplanner.business.orders.entities.OrderElement");
+            }
+        }
+        existParentsWithSameAdvanceType(this, newAdvanceAssigment);
+        this.advanceAssigments.add(newAdvanceAssigment);
+    }
+
+    private void existParentsWithSameAdvanceType(OrderElement orderElement,
+            AdvanceAssigment newAdvanceAssigment)
+            throws DuplicateAdvanceAssigmentForOrderElementException {
+
+        List<OrderElement> parents = OrdersDaoRegistry.getOrderElementDao()
+                .findParent(orderElement);
+        for (OrderElement orderElementParent : parents) {
+            for (AdvanceAssigment advanceAssigment : orderElementParent
+                    .getAdvanceAssigments()) {
+                if (advanceAssigment.getAdvanceType().getId() == newAdvanceAssigment
+                        .getAdvanceType().getId()) {
+                    throw new DuplicateAdvanceAssigmentForOrderElementException(
+                            "Duplicate Advance Assigment For Order Element",
+                            this,
+                            "org.navalplanner.business.orders.entities.OrderElement");
+                }
+            }
+            existParentsWithSameAdvanceType(orderElementParent,
+                    newAdvanceAssigment);
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/navalplanner-business/src/main/resources/navalplanner-business-spring-config.xml b/navalplanner-business/src/main/resources/navalplanner-business-spring-config.xml
index b10bfcd27..298d31033 100644
--- a/navalplanner-business/src/main/resources/navalplanner-business-spring-config.xml
+++ b/navalplanner-business/src/main/resources/navalplanner-business-spring-config.xml
@@ -14,12 +14,14 @@
 
     <!-- Hibernate Session Factory. -->
     <bean id="sessionFactory"
-        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
-        p:dataSource-ref="dataSource"
-        p:configLocation="classpath:/navalplanner-business-hibernate.cfg.xml">
+    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
+        p:dataSource-ref="dataSource" p:configLocation="classpath:/navalplanner-business-hibernate.cfg.xml">
 
         <property name="mappingResources">
             <list>
+                <value>
+                    org/navalplanner/business/advance/entities/Advance.hbm.xml
+                </value>
                 <value>
                     org/navalplanner/business/resources/entities/Resources.hbm.xml
                 </value>
@@ -35,7 +37,7 @@
                 <value>
                     org/navalplanner/business/workreports/entities/WorkReports.hbm.xml
                 </value>
-            </list>
+                </list>
         </property>
     </bean>
 
@@ -45,8 +47,7 @@
         p:sessionFactory-ref="sessionFactory" />
 
     <!--
-        Enable configuration of transactional behavior based on
-        annotations
+        Enable configuration of transactional behavior based on annotations
     -->
     <tx:annotation-driven transaction-manager="transactionManager" />
 
@@ -56,10 +57,12 @@
     -->
     <context:annotation-config />
 
-    <context:component-scan base-package="org.navalplanner.business"/>
+    <context:component-scan base-package="org.navalplanner.business" />
 
-    <!--  DAO registries (to be used from non-Spring managed objects
-          (e.g. entities)  -->
+    <!--
+        DAO registries (to be used from non-Spring managed objects (e.g.
+        entities)
+    -->
 
     <bean id="resourcesDaoRegistry"
         class="org.navalplanner.business.resources.daos.ResourcesDaoRegistry"
@@ -76,4 +79,9 @@
     <bean id="workReportsDaoRegistry"
         class="org.navalplanner.business.workreports.daos.WorkReportsDaoRegistry"
         factory-method="getInstance" />
+
+    <bean id="advanceDaoRegistry"
+        class="org.navalplanner.business.advance.daos.AdvanceDaoRegistry"
+        factory-method="getInstance" />
+
 </beans>
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/advance/entities/Advance.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/advance/entities/Advance.hbm.xml
new file mode 100644
index 000000000..620546979
--- /dev/null
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/advance/entities/Advance.hbm.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
+<hibernate-mapping package="org.navalplanner.business.advance.entities" default-access="field">
+
+<!-- AdvanceType -->
+<class name="AdvanceType" table="ADVANCE_TYPE">
+    <id name="id" type="long">
+        <generator class="native"/>
+    </id>
+    <version name="version" type="long"/>
+
+    <property name="unitName"/>
+    <property name="defaultMaxValue"/>
+    <property name="updatable"/>
+</class>
+
+<!-- AdvanceAssigment -->
+<class name="AdvanceAssigment" table="ADVANCE_ASSIGMENT">
+    <id name="id" type="long">
+        <generator class="native"/>
+    </id>
+    <version name="version" type="long"/>
+
+    <property name="maxValue"/>
+    <property name="reportGlobalAdvance"/>
+
+    <many-to-one name="advanceType" class="AdvanceType" column="ADVANCE_TYPE_ID"/>
+
+    <many-to-one name="orderElement" class="org.navalplanner.business.orders.entities.OrderElement" column="ORDER_ELEMENT_ID"/>
+
+    <set name="advanceMeasurements" cascade="all" inverse="true">
+        <key column="ADVANCE_ASSIGMENT_ID"/>
+        <one-to-many class="AdvanceMeasurement"/>
+    </set>
+</class>
+
+<!-- AdvanceMeasurement -->
+<class name="AdvanceMeasurement" table="ADVANCE_MEASUREMENT">
+    <id name="id" type="long">
+        <generator class="native"/>
+    </id>
+    <version name="version" type="long"/>
+
+    <property name="date"/>
+    <property name="value"/>
+
+    <many-to-one name="advanceAssigment" class="AdvanceAssigment" column="ADVANCE_ASSIGMENT_ID" />
+</class>
+</hibernate-mapping>
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
index a699728bc..e90d65a32 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
@@ -5,7 +5,7 @@
         <id access="field" type="long" name="id">
             <generator class="native" />
         </id>
-        <version name="version" access="field" type="long" />
+        <version name="version" access="field" type="long"/>
         <property name="initDate" access="field"></property>
         <property name="endDate" access="field"></property>
         <property name="name" access="field"></property>
@@ -15,7 +15,7 @@
         <list name="orderElements" access="field" cascade="all">
             <key column="orderId" not-null="false"></key>
             <index column="positionInOrder"></index>
-            <one-to-many class="OrderElement" />
+            <one-to-many class="OrderElement"/>
         </list>
     </class>
 
@@ -31,11 +31,15 @@
         <property name="mandatoryInit" access="field" />
         <property name="mandatoryEnd" access="field" />
         <property name="description" access="field" />
-        <property name="code" access="field"/>
+        <property name="code" access="field" />
         <set name="taskElements" access="field" cascade="delete">
-            <key column="ORDER_ELEMENT_ID"/>
+            <key column="ORDER_ELEMENT_ID" />
             <one-to-many class="org.navalplanner.business.planner.entities.TaskElement"></one-to-many>
         </set>
+        <set name="advanceAssigments" cascade="all" inverse="true">
+            <key column="ORDER_ELEMENT_ID" />
+            <one-to-many class="org.navalplanner.business.advance.entities.AdvanceAssigment"></one-to-many>
+        </set>
 
         <!-- Inverse navigation from OrderElement to OrderLineGroup -->
         <many-to-one name="parent" access="field"/>
@@ -77,8 +81,8 @@
         </set>
 
         <many-to-one name="parentOrderLine" column="PARENT_ORDER_LINE"
-            not-null="true"/>
+            not-null="true" />
 
-    </class>
+</class>
 
 </hibernate-mapping>
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceAssigmentTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceAssigmentTest.java
new file mode 100644
index 000000000..9a255c8ed
--- /dev/null
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceAssigmentTest.java
@@ -0,0 +1,13 @@
+package org.navalplanner.business.test.advance.entities;
+
+import static junit.framework.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class AdvanceAssigmentTest {
+    @Test
+    public void testAdvanceAssigmentTest() {
+        assertTrue(true);
+    }
+
+}
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceMeasurementTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceMeasurementTest.java
new file mode 100644
index 000000000..63b80bd48
--- /dev/null
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceMeasurementTest.java
@@ -0,0 +1,13 @@
+package org.navalplanner.business.test.advance.entities;
+
+import static junit.framework.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class AdvanceMeasurementTest {
+    @Test
+    public void testAdvanceMeasurementTest() {
+        assertTrue(true);
+    }
+
+}
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceTypeTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceTypeTest.java
new file mode 100644
index 000000000..199c92eaa
--- /dev/null
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/advance/entities/AdvanceTypeTest.java
@@ -0,0 +1,13 @@
+package org.navalplanner.business.test.advance.entities;
+
+import static junit.framework.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class AdvanceTypeTest {
+
+    @Test
+    public void testAdvanceTypeTest() {
+        assertTrue(true);
+    }
+}
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssigmentsToOrderElementTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssigmentsToOrderElementTest.java
new file mode 100644
index 000000000..9397e4ffe
--- /dev/null
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssigmentsToOrderElementTest.java
@@ -0,0 +1,431 @@
+package org.navalplanner.business.test.orders.entities;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
+import static org.navalplanner.business.test.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_TEST_FILE;
+
+import java.math.BigDecimal;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.navalplanner.business.advance.daos.IAdvanceAssigmentDAO;
+import org.navalplanner.business.advance.daos.IAdvanceTypeDAO;
+import org.navalplanner.business.advance.entities.AdvanceAssigment;
+import org.navalplanner.business.advance.entities.AdvanceType;
+import org.navalplanner.business.advance.exceptions.DuplicateAdvanceAssigmentForOrderElementException;
+import org.navalplanner.business.advance.exceptions.DuplicateValueTrueReportGlobalAdvanceException;
+import org.navalplanner.business.orders.daos.IOrderDao;
+import org.navalplanner.business.orders.daos.IOrderElementDao;
+import org.navalplanner.business.orders.entities.HoursGroup;
+import org.navalplanner.business.orders.entities.Order;
+import org.navalplanner.business.orders.entities.OrderElement;
+import org.navalplanner.business.orders.entities.OrderLine;
+import org.navalplanner.business.orders.entities.OrderLineGroup;
+import org.navalplanner.business.test.resources.daos.CriterionSatisfactionDAOTest;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * Tests for {@link AdvanceAssigment of OrderElement}. <br />
+ * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = { BUSINESS_SPRING_CONFIG_FILE,
+        BUSINESS_SPRING_CONFIG_TEST_FILE })
+@Transactional
+public class AddAdvanceAssigmentsToOrderElementTest {
+
+    @Autowired
+    private SessionFactory sessionFactory;
+
+    @Autowired
+    private IOrderElementDao orderElementDao;
+
+    @Autowired
+    private IOrderDao orderDao;
+
+    @Autowired
+    private IAdvanceAssigmentDAO advanceAssigmentDao;
+
+    @Autowired
+    private IAdvanceTypeDAO advanceTypeDao;
+
+    private Session getSession() {
+        return sessionFactory.getCurrentSession();
+    }
+
+    private static Order createValidOrder() {
+        Order order = new Order();
+        order.setDescription("description");
+        order.setCustomer("blabla");
+        order.setInitDate(CriterionSatisfactionDAOTest.year(2000));
+        order.setName("name");
+        order.setResponsible("responsible");
+        return order;
+    }
+
+    private OrderLine createValidLeaf(String name, String code) {
+        OrderLine result = new OrderLine();
+        result.setName(name);
+        result.setCode(code);
+        HoursGroup hoursGroup = new HoursGroup(result);
+        hoursGroup.setWorkingHours(0);
+        result.addHoursGroup(hoursGroup);
+        return result;
+    }
+
+    private AdvanceType createValidAdvanceType(String name) {
+        BigDecimal value = new BigDecimal(120).setScale(2);
+        AdvanceType advanceType = new AdvanceType(name, value, true);
+        return advanceType;
+    }
+
+    private AdvanceAssigment createValidAdvanceAssigment(
+            boolean reportGlobalAdvance) {
+        BigDecimal value = new BigDecimal(120).setScale(2);
+        AdvanceAssigment advanceAssigment = new AdvanceAssigment(
+                reportGlobalAdvance, value);
+        return advanceAssigment;
+    }
+
+    /**
+     * An empty {@link OrderElement} without any {@link AdvanceAssigment}.
+     * Trying to add a new {@link AdvanceAssigment} to {@link OrderElement} .
+     * Expected: Add new {@link AdvanceAssigment} to the list of
+     * advanceAssigment of {@link OrderElement}.
+     */
+    @Test
+    public void testSetAdvanceAssigmentEmptyOrderElement() {
+        Order order = createValidOrder();
+        OrderElement orderLine = createValidLeaf("OrderLineA", "1k1k1k1k");
+
+        AdvanceType advanceType = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceType);
+        assertTrue(advanceTypeDao.exists(advanceType.getId()));
+
+        AdvanceAssigment advanceAssigment = createValidAdvanceAssigment(true);
+        assertTrue(orderLine.getAdvanceAssigments().isEmpty());
+        advanceAssigment.setAdvanceType(advanceType);
+
+        order.add(orderLine);
+        orderDao.save(order);
+
+        try {
+            orderLine.addAvanceAssigment(advanceAssigment);
+        } catch (DuplicateAdvanceAssigmentForOrderElementException e) {
+            fail("Duplicate Exception");
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        order.add(orderLine);
+        orderDao.save(order);
+        this.sessionFactory.getCurrentSession().flush();
+        assertTrue(orderDao.exists(order.getId()));
+        assertTrue(orderElementDao.exists(orderLine.getId()));
+
+        assertFalse(orderLine.getAdvanceAssigments().isEmpty());
+        assertTrue(advanceAssigmentDao.exists(advanceAssigment.getId()));
+
+    }
+
+    /**
+     * An {@link OrderElement} with an {@link AdvanceAssigment}. Trying to add a
+     * new {@link AdvanceAssigment} to {@link OrderElement} . Expected: Add to
+     * the list a new {@link AdvanceAssigment} of diferent type.
+     */
+    @Test
+    public void testSetOtherAdvanceAssigmentOrderElement() {
+        Order order = createValidOrder();
+        OrderLine orderLine = createValidLeaf("OrderLineA", "1111111");
+
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+        AdvanceType advanceTypeB = createValidAdvanceType("tipoB");
+        advanceTypeDao.save(advanceTypeB);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+
+        order.add(orderLine);
+        orderDao.save(order);
+
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(false);
+        advanceAssigmentB.setAdvanceType(advanceTypeB);
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentB);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+    }
+
+    /**
+     * An {@link OrderElement} with an {@link AdvanceAssigment}. Trying to add a
+     * new {@link AdvanceAssigment} of the same type.to {@link OrderElement}
+     * Expected: It must throw a
+     * DuplicateAdvanceAssigmentForOrderElementException Exception.
+     */
+    @Test
+    public void testSetOtherAdvanceAssigmentOrderElementIllegal() {
+        Order order = createValidOrder();
+        OrderLine orderLine = createValidLeaf("OrderLineA", "22222222");
+
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+
+        order.add(orderLine);
+        orderDao.save(order);
+
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(false);
+        advanceAssigmentB.setAdvanceType(advanceTypeA);
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentB);
+            fail("It should throw an exception");
+        } catch (Exception e) {
+            // Ok } }
+        }
+    }
+
+    /**
+     * An {@link OrderElement} with an {@link AdvanceAssigment}. Trying to add a
+     * new {@link AdvanceAssigment} with the ReportGloblalAdvance value true to
+     * {@link OrderElement} Expected: It must throw a
+     * DuplicateValueTrueReportGlobalAdvanceException Exception.
+     */
+    @Test
+    public void testSetWithSameReportGloblalAdvance() {
+        Order order = createValidOrder();
+        OrderLine orderLine = createValidLeaf("OrderLineA", "101010101");
+
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+        AdvanceType advanceTypeB = createValidAdvanceType("tipoB");
+        advanceTypeDao.save(advanceTypeB);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+
+        order.add(orderLine);
+        orderDao.save(order);
+
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(true);
+        advanceAssigmentB.setAdvanceType(advanceTypeB);
+        try {
+            orderLine.addAvanceAssigment(advanceAssigmentB);
+            fail("It should throw an exception  ");
+        } catch (DuplicateValueTrueReportGlobalAdvanceException e) {
+            // Ok
+        } catch (Exception e) {
+            fail("It should not throw an exception");
+        }
+    }
+
+    /**
+     * Trying define an AdvanceAssigment object when any father of OrderElement
+     * with an AdvanceAssigment object that has the other AdvanceType. It must
+     * not throw any exception.
+     **/
+    @Test
+    public void testSetAdvanceAssigmentOrdeElementSon() {
+        final Order order = createValidOrder();
+        final OrderElement[] containers = new OrderLineGroup[2];
+        for (int i = 0; i < containers.length; i++) {
+            containers[i] = new OrderLineGroup();
+            containers[i].setName("bla");
+            containers[i].setCode("000000000");
+            order.add(containers[i]);
+        }
+        OrderLineGroup container = (OrderLineGroup) containers[0];
+        final OrderElement[] orderElements = new OrderElement[4];
+        for (int i = 0; i < orderElements.length; i++) {
+            OrderLine leaf = createValidLeaf("bla", "787887");
+            orderElements[i] = leaf;
+            container.add(leaf);
+        }
+
+        for (int i = 1; i < containers.length; i++) {
+            OrderLineGroup orderLineGroup = (OrderLineGroup) containers[i];
+            OrderLine leaf = createValidLeaf("foo", "156325");
+            orderLineGroup.add(leaf);
+        }
+
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+        AdvanceType advanceTypeB = createValidAdvanceType("tipoB");
+        advanceTypeDao.save(advanceTypeB);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(true);
+        advanceAssigmentB.setAdvanceType(advanceTypeB);
+
+        orderDao.save(order);
+
+        try {
+            container.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        assertThat(container.getAdvanceAssigments().size(), equalTo(1));
+        assertThat(
+                container.getChildren().get(0).getAdvanceAssigments().size(),
+                equalTo(0));
+        try {
+            ((OrderElement) container.getChildren().get(0))
+                    .addAvanceAssigment(advanceAssigmentB);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+    }
+
+    /**
+     * Trying define an AdvanceAssigment object when any father of OrderElement
+     * with an AdvanceAssigment object that has the same AdvanceType Expected:
+     * It must throw DuplicateAdvanceAssigmentForOrderElementException
+     * Exception.
+     **/
+    @Test
+    public void testSetAdvanceAssigmentOrdeElementSonIllegal() {
+        final Order order = createValidOrder();
+        final OrderElement[] containers = new OrderLineGroup[2];
+        for (int i = 0; i < containers.length; i++) {
+            containers[i] = new OrderLineGroup();
+            containers[i].setName("bla");
+            containers[i].setCode("000000000");
+            order.add(containers[i]);
+        }
+        OrderLineGroup container = (OrderLineGroup) containers[0];
+
+        final OrderElement[] orderElements = new OrderElement[4];
+        for (int i = 0; i < orderElements.length; i++) {
+            OrderLine leaf = createValidLeaf("bla", "97979");
+            orderElements[i] = leaf;
+            container.add(leaf);
+        }
+
+        for (int i = 1; i < containers.length; i++) {
+            OrderLineGroup orderLineGroup = (OrderLineGroup) containers[i];
+            OrderLine leaf = createValidLeaf("foo", "797900");
+            orderLineGroup.add(leaf);
+        }
+
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(true);
+        advanceAssigmentB.setAdvanceType(advanceTypeA);
+
+        orderDao.save(order);
+
+        try {
+            container.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        assertThat(container.getAdvanceAssigments().size(), equalTo(1));
+        assertThat(
+                container.getChildren().get(0).getAdvanceAssigments().size(),
+                equalTo(0));
+        try {
+            ((OrderElement) container.getChildren().get(0))
+                    .addAvanceAssigment(advanceAssigmentB);
+            fail("It should throw an exception  ");
+        } catch (Exception e) {
+            // Ok
+        }
+    }
+
+    /**
+     * Trying define an AdvanceAssigment object when any grandfather of
+     * OrderElement with an AdvanceAssigment object that has the same
+     * AdvanceType Expected: It must throw
+     * DuplicateAdvanceAssigmentForOrderElementException Exception.
+     **/
+    @Test
+    public void testSetAdvanceAssigmentOrdeElementGrandSonIllegal() {
+        final Order order = createValidOrder();
+        final OrderElement[] containers = new OrderLineGroup[2];
+        for (int i = 0; i < containers.length; i++) {
+            containers[i] = new OrderLineGroup();
+            containers[i].setName("bla_" + i);
+            containers[i].setCode("000000000");
+            order.add(containers[i]);
+        }
+        OrderLineGroup container = (OrderLineGroup) containers[0];
+        OrderLineGroup containerSon = (OrderLineGroup) new OrderLineGroup();
+        containerSon.setName("Son");
+        containerSon.setCode("11111111");
+        container.add(containerSon);
+        OrderLine orderLineGranSon = createValidLeaf("GranSon", "75757");
+        containerSon.add(orderLineGranSon);
+        final OrderElement[] orderElements = new OrderElement[2];
+        for (int i = 1; i < orderElements.length; i++) {
+            OrderLine leaf = createValidLeaf("bla", "979879");
+            orderElements[i] = leaf;
+            container.add(leaf);
+        }
+        for (int i = 1; i < containers.length; i++) {
+            OrderLineGroup orderLineGroup = (OrderLineGroup) containers[i];
+            OrderLine leaf = createValidLeaf("foo", "79799");
+            orderLineGroup.add(leaf);
+        }
+        AdvanceType advanceTypeA = createValidAdvanceType("tipoA");
+        advanceTypeDao.save(advanceTypeA);
+
+        AdvanceAssigment advanceAssigmentA = createValidAdvanceAssigment(true);
+        advanceAssigmentA.setAdvanceType(advanceTypeA);
+        AdvanceAssigment advanceAssigmentB = createValidAdvanceAssigment(true);
+        advanceAssigmentB.setAdvanceType(advanceTypeA);
+
+        orderDao.save(order);
+
+        try {
+            container.addAvanceAssigment(advanceAssigmentA);
+        } catch (Exception e) {
+            fail("It should not throw an exception  ");
+        }
+
+        assertThat(container.getAdvanceAssigments().size(), equalTo(1));
+
+        try {
+            orderLineGranSon.addAvanceAssigment(advanceAssigmentB);
+            fail("It should throw an exception  ");
+        } catch (Exception e) {
+            // Ok
+        }
+    }
+
+}
diff --git a/navalplanner-business/src/test/resources/navalplanner-business-spring-config-test.xml b/navalplanner-business/src/test/resources/navalplanner-business-spring-config-test.xml
index ce09fa6de..193ea45b1 100644
--- a/navalplanner-business/src/test/resources/navalplanner-business-spring-config-test.xml
+++ b/navalplanner-business/src/test/resources/navalplanner-business-spring-config-test.xml
@@ -31,6 +31,9 @@
         -->
         <property name="mappingResources">
             <list>
+                <value>
+                    org/navalplanner/business/advance/entities/Advance.hbm.xml
+                </value>
                 <value>
                     org/navalplanner/business/resources/entities/Resources.hbm.xml
                 </value>