diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReport.java b/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReport.java
index 94e807ee2..23f9c2a01 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReport.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReport.java
@@ -275,7 +275,7 @@ public class WorkReport extends IntegrationEntity {
             return true;
         }
 
-        if (this.workReportType.getHeadingFields().size() != this.descriptionValues
+        if (this.workReportType.getHeadingFields().size() > this.descriptionValues
                 .size()) {
             return false;
         }
@@ -291,6 +291,27 @@ public class WorkReport extends IntegrationEntity {
         return true;
     }
 
+    @SuppressWarnings("unused")
+    @AssertTrue(message = "There are repeated description values in the work report ")
+    public boolean checkConstraintAssignedRepeatedDescriptionValues() {
+
+        Set<String> textFields = new HashSet<String>();
+
+        for (DescriptionValue v : this.descriptionValues) {
+
+            String name = v.getFieldName();
+
+            if (!StringUtils.isBlank(name)) {
+                if (textFields.contains(name.toLowerCase())) {
+                    return false;
+                } else {
+                    textFields.add(name.toLowerCase());
+                }
+            }
+        }
+        return true;
+    }
+
     public DescriptionValue getDescriptionValueByFieldName(String fieldName)
             throws InstanceNotFoundException {
 
@@ -402,4 +423,8 @@ public class WorkReport extends IntegrationEntity {
 
     }
 
+    @AssertTrue(message = "The work report line codes must be unique.")
+    public boolean checkConstraintNonRepeatedWorkReportLinesCodes() {
+        return getFirstRepeatedCode(this.workReportLines) == null;
+    }
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReportLine.java b/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReportLine.java
index 949d92eb9..bbea6eb96 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReportLine.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/workreports/entities/WorkReportLine.java
@@ -272,6 +272,25 @@ public class WorkReportLine extends IntegrationEntity implements Comparable {
         return true;
     }
 
+    @SuppressWarnings("unused")
+    @AssertTrue(message = "The start hour cannot be higher than finish hour")
+    public boolean checkCannotBeHigher() {
+        if (!firstLevelValidationsPassed()) {
+            return true;
+        }
+
+        if (workReport.getWorkReportType().getHoursManagement().equals(
+                HoursManagementEnum.HOURS_CALCULATED_BY_CLOCK)) {
+            return checkCannotBeHigher(this.clockStart, this.clockFinish);
+        }
+        return true;
+    }
+
+    public boolean checkCannotBeHigher(LocalTime starting, LocalTime ending) {
+        return !((ending != null) && (starting != null) && (starting
+                .compareTo(ending) > 0));
+    }
+
     void updateItsFieldsAndLabels() {
         if (workReport != null) {
             assignItsLabels(workReport.getWorkReportType());
@@ -455,7 +474,7 @@ public class WorkReportLine extends IntegrationEntity implements Comparable {
             return true;
         }
 
-        if (this.workReport.getWorkReportType().getLineFields().size() != this.descriptionValues
+        if (this.workReport.getWorkReportType().getLineFields().size() > this.descriptionValues
                 .size()) {
             return false;
         }
@@ -471,6 +490,27 @@ public class WorkReportLine extends IntegrationEntity implements Comparable {
         return true;
     }
 
+    @SuppressWarnings("unused")
+    @AssertTrue(message = "There are repeated description values in the work report line")
+    public boolean checkConstraintAssignedRepeatedDescriptionValues() {
+
+        Set<String> textFields = new HashSet<String>();
+
+        for (DescriptionValue v : this.descriptionValues) {
+
+            String name = v.getFieldName();
+
+            if (!StringUtils.isBlank(name)) {
+                if (textFields.contains(name.toLowerCase())) {
+                    return false;
+                } else {
+                    textFields.add(name.toLowerCase());
+                }
+            }
+        }
+        return true;
+    }
+
     public DescriptionValue getDescriptionValueByFieldName(String fieldName)
             throws InstanceNotFoundException {
 
@@ -505,4 +545,5 @@ public class WorkReportLine extends IntegrationEntity implements Comparable {
         throw new InstanceNotFoundException(type, LabelType.class.getName());
     }
 
+
 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/impl/DateConverter.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/impl/DateConverter.java
index 468c2f4d5..db9cbc4c1 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/impl/DateConverter.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/impl/DateConverter.java
@@ -28,6 +28,7 @@ import javax.xml.datatype.DatatypeFactory;
 import javax.xml.datatype.XMLGregorianCalendar;
 
 import org.joda.time.LocalDate;
+import org.joda.time.LocalTime;
 
 /**
  * A converter from <code>java.util.Date</code> to/from
@@ -58,9 +59,34 @@ public class DateConverter {
 
     /**
      * It converts a <code>XMLGregorianCalendar</code> representing a
-     * <code>xsd:date</code> XML type to a Joda's <code>LocalDate</code>.
-     * <br/><br/>
-     *
+     * <code>xsd:localTime</code> XML type to a <code>LocalTime</code>.<br/>
+     * <br/>
+     * If the localTime passed as a parameter is <code>null</code>, it also
+     * returns <code>null</code>.
+     */
+    public final static LocalTime toLocalTime(XMLGregorianCalendar date) {
+
+        if (date == null) {
+            return null;
+        } else {
+            if (isDefined(date.getHour()) && isDefined(date.getMinute())
+                    && isDefined(date.getSecond())){
+                return new LocalTime(date.getHour(), date.getMinute(), date
+                    .getSecond());
+            }
+            return null;
+        }
+
+    }
+
+    private static boolean isDefined(int hour){
+        return hour != DatatypeConstants.FIELD_UNDEFINED;
+    }
+
+    /**
+     * It converts a <code>XMLGregorianCalendar</code> representing a
+     * <code>xsd:date</code> XML type to a Joda's <code>LocalDate</code>. <br/>
+     * <br/>
      * If the date passed as a parameter is <code>null</code>, it also returns
      * <code>null</code>.
      */
@@ -106,4 +132,23 @@ public class DateConverter {
         return toXMLGregorianCalendar(LocalDate.fromDateFields(date));
     }
 
+    public static XMLGregorianCalendar toXMLGregorianCalendar(LocalTime dateTime) {
+        if (dateTime == null) {
+            return null;
+        } else {
+            DatatypeFactory factory;
+            try {
+                factory = DatatypeFactory.newInstance();
+            } catch (DatatypeConfigurationException e) {
+                throw new RuntimeException(e);
+            }
+
+            LocalDate date = dateTime.toDateTimeToday().toLocalDate();
+            return factory.newXMLGregorianCalendarTime(dateTime
+                    .getHourOfDay(), dateTime.getMinuteOfHour(), dateTime
+                    .getSecondOfMinute(), dateTime.getMillisOfSecond(),
+                    DatatypeConstants.FIELD_UNDEFINED
+                    );
+        }
+    }
 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportDTO.java
index 3d207c7ef..bc81f5f3c 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportDTO.java
@@ -20,7 +20,6 @@
 
 package org.navalplanner.ws.workreports.api;
 
-import java.util.Date;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -28,6 +27,7 @@ import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.datatype.XMLGregorianCalendar;
 
 import org.navalplanner.business.workreports.entities.WorkReport;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -47,7 +47,7 @@ public class WorkReportDTO extends IntegrationEntityDTO {
     public String workReportType;
 
     @XmlAttribute
-    public Date date;
+    public XMLGregorianCalendar date;
 
     @XmlAttribute
     public String resource;
@@ -70,7 +70,8 @@ public class WorkReportDTO extends IntegrationEntityDTO {
     public WorkReportDTO() {
     }
 
-    public WorkReportDTO(String code, String workReportType, Date date,
+    public WorkReportDTO(String code, String workReportType,
+            XMLGregorianCalendar date,
             String resource, String orderElement, Set<LabelReferenceDTO> labels,
             Set<DescriptionValueDTO> descriptionValues,
             Set<WorkReportLineDTO> workReportLines) {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportLineDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportLineDTO.java
index 3464c433a..8ac04bf51 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportLineDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/api/WorkReportLineDTO.java
@@ -20,7 +20,6 @@
 
 package org.navalplanner.ws.workreports.api;
 
-import java.util.Date;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -28,6 +27,7 @@ import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.datatype.XMLGregorianCalendar;
 
 import org.navalplanner.business.workreports.entities.WorkReportLine;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -44,7 +44,7 @@ public class WorkReportLineDTO extends IntegrationEntityDTO {
     public final static String ENTITY_TYPE = "work-report-line";
 
     @XmlAttribute
-    public Date date;
+    public XMLGregorianCalendar date;
 
     @XmlAttribute
     public String resource;
@@ -56,10 +56,10 @@ public class WorkReportLineDTO extends IntegrationEntityDTO {
     public String typeOfWorkHours;
 
     @XmlAttribute(name = "start-hour")
-    public Date clockStart;
+    public XMLGregorianCalendar clockStart;
 
     @XmlAttribute(name = "finish-hour")
-    public Date clockFinish;
+    public XMLGregorianCalendar clockFinish;
 
     @XmlAttribute(name = "hours")
     public Integer numHours;
@@ -75,9 +75,11 @@ public class WorkReportLineDTO extends IntegrationEntityDTO {
     public WorkReportLineDTO() {
     }
 
-    public WorkReportLineDTO(String code, Date date, String resource,
-            String orderElement, String typeOfWorkHours, Date clockStart,
-            Date clockFinish, Integer numHours, Set<LabelReferenceDTO> labels,
+    public WorkReportLineDTO(String code, XMLGregorianCalendar date,
+            String resource,
+ String orderElement, String typeOfWorkHours,
+            XMLGregorianCalendar clockStart, XMLGregorianCalendar clockFinish,
+            Integer numHours, Set<LabelReferenceDTO> labels,
             Set<DescriptionValueDTO> descriptionValues) {
         super(code);
         this.date = date;
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/impl/WorkReportConverter.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/impl/WorkReportConverter.java
index e4a77bec4..1f87957ed 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/impl/WorkReportConverter.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/workreports/impl/WorkReportConverter.java
@@ -26,6 +26,8 @@ import java.util.Date;
 import java.util.HashSet;
 import java.util.Set;
 
+import javax.xml.datatype.XMLGregorianCalendar;
+
 import org.apache.commons.lang.StringUtils;
 import org.navalplanner.business.common.Registry;
 import org.navalplanner.business.common.exceptions.InstanceNotFoundException;
@@ -41,6 +43,7 @@ import org.navalplanner.business.workreports.entities.WorkReportLine;
 import org.navalplanner.business.workreports.entities.WorkReportType;
 import org.navalplanner.business.workreports.valueobjects.DescriptionValue;
 import org.navalplanner.ws.common.api.LabelReferenceDTO;
+import org.navalplanner.ws.common.impl.DateConverter;
 import org.navalplanner.ws.common.impl.LabelReferenceConverter;
 import org.navalplanner.ws.workreports.api.DescriptionValueDTO;
 import org.navalplanner.ws.workreports.api.WorkReportDTO;
@@ -78,7 +81,7 @@ public final class WorkReportConverter {
 
         // Optional fields
         if (workReportDTO.date != null) {
-            workReport.setDate(workReportDTO.date);
+            workReport.setDate(DateConverter.toDate(workReportDTO.date));
         }
 
         if (workReportDTO.orderElement != null) {
@@ -88,6 +91,8 @@ public final class WorkReportConverter {
                 workReport.setOrderElement(orderElement);
             } catch (InstanceNotFoundException e) {
                 workReport.setOrderElement(null);
+                throw new ValidationException(
+                        _("There is no order element with this code"));
             }
         }
 
@@ -98,15 +103,24 @@ public final class WorkReportConverter {
                 workReport.setResource(worker);
             } catch (InstanceNotFoundException e) {
                 workReport.setResource(null);
+                throw new ValidationException(
+                        _("There is no resource with this nif"));
             }
         }
 
-        if (workReportDTO.labels != null) {
+        if (workReportDTO.labels != null && !workReportDTO.labels.isEmpty()) {
+            try {
                 workReport.setLabels(LabelReferenceConverter
                         .toEntity(workReportDTO.labels));
+            } catch (InstanceNotFoundException e) {
+                throw new ValidationException(
+                        _("There is no label with this code "
+                                + (String) e.getKey()));
+            }
         }
 
-        if (workReportDTO.descriptionValues != null) {
+        if (workReportDTO.descriptionValues != null
+                && !workReportDTO.descriptionValues.isEmpty()) {
             workReport
                     .setDescriptionValues(toEntity(workReportDTO.descriptionValues));
         }
@@ -138,7 +152,8 @@ public final class WorkReportConverter {
 
         // Optional fields
         if (workReportLineDTO.date != null) {
-            workReportLine.setDate(workReportLineDTO.date);
+            workReportLine
+                    .setDate(DateConverter.toDate(workReportLineDTO.date));
         }
 
         if (workReportLineDTO.orderElement != null) {
@@ -148,6 +163,8 @@ public final class WorkReportConverter {
                 workReportLine.setOrderElement(orderElement);
             } catch (InstanceNotFoundException e) {
                 workReportLine.setOrderElement(null);
+                throw new ValidationException(
+                        _("There is no order element with this code"));
             }
         }
 
@@ -158,17 +175,22 @@ public final class WorkReportConverter {
             workReportLine.setResource(worker);
             } catch (InstanceNotFoundException e) {
                 workReportLine.setResource(null);
+                throw new ValidationException(
+                        _("There is no resource with this nif"));
             }
         }
 
         if (workReportLineDTO.clockStart != null) {
-            workReportLine.setClockStart(workReportLineDTO.clockStart);
+            workReportLine.setClockStart(DateConverter
+                    .toLocalTime(workReportLineDTO.clockStart));
         }
         if (workReportLineDTO.clockFinish != null) {
-            workReportLine.setClockFinish(workReportLineDTO.clockFinish);
+            workReportLine.setClockFinish(DateConverter
+                    .toLocalTime(workReportLineDTO.clockFinish));
         }
 
-        if (workReportLineDTO.labels != null) {
+        if (workReportLineDTO.labels != null
+                && !workReportLineDTO.labels.isEmpty()) {
             workReportLine.setLabels(LabelReferenceConverter
                     .toEntity(workReportLineDTO.labels));
         }
@@ -211,9 +233,9 @@ public final class WorkReportConverter {
         }
 
         // Optional fields
-        Date date = null;
+        XMLGregorianCalendar date = null;
         if (workReport.getDate() != null) {
-            date = workReport.getDate();
+            date = DateConverter.toXMLGregorianCalendar(workReport.getDate());
         }
 
         String orderElementCode = null;
@@ -262,7 +284,8 @@ public final class WorkReportConverter {
 
     public final static WorkReportLineDTO toDTO(WorkReportLine line){
         String code = line.getCode();
-        Date date = line.getDate();
+        XMLGregorianCalendar date = DateConverter.toXMLGregorianCalendar(line
+                .getDate());
 
         String resource = null;
         if((line.getResource() != null) && (line.getResource() instanceof Worker)){
@@ -279,14 +302,15 @@ public final class WorkReportConverter {
             typeOfWorkHours = line.getTypeOfWorkHours().getCode();
         }
 
-        Date clockStart = null;
+        XMLGregorianCalendar clockStart = null;
         if(line.getClockStart() != null){
-            clockStart = line.getClockStart().toDateTimeToday().toDate();
+            clockStart = DateConverter.toXMLGregorianCalendar(line.getClockStart());
         }
 
-        Date clockFinish = null;
+        XMLGregorianCalendar clockFinish = null;
         if(line.getClockFinish() != null){
-            clockFinish = line.getClockFinish().toDateTimeToday().toDate();
+            clockFinish = DateConverter.toXMLGregorianCalendar(line
+                    .getClockFinish());
         }
 
         Integer numHours = null;
@@ -331,6 +355,10 @@ public final class WorkReportConverter {
     public final static void updateWorkReport(WorkReport workReport,
             WorkReportDTO workReportDTO) throws ValidationException {
 
+        if (StringUtils.isBlank(workReportDTO.code)) {
+            throw new ValidationException(_("missing code in a work report."));
+        }
+
         WorkReportType type = workReport.getWorkReportType();
         /*
          * 1: Update the existing work report line or add new
@@ -361,41 +389,44 @@ public final class WorkReportConverter {
         /*
          * 2: Update the existing labels
          */
-        for (LabelReferenceDTO labelDTO : workReportDTO.labels) {
+        if (workReportDTO.labels != null) {
+            for (LabelReferenceDTO labelDTO : workReportDTO.labels) {
 
-            /* Step 2.1: requires each label reference DTO to have a code. */
-            if (StringUtils.isBlank(labelDTO.code)) {
-                throw new ValidationException(
-                        _("missing code in a label"));
-            }
+                /* Step 2.1: requires each label reference DTO to have a code. */
+                if (StringUtils.isBlank(labelDTO.code)) {
+                    throw new ValidationException(_("missing code in a label"));
+                }
 
-            try {
-                Set<Label> labels = workReport.getLabels();
-                updateLabel(labelDTO, labels);
-            } catch (InstanceNotFoundException e) {
-                throw new ValidationException(
+                try {
+                    Set<Label> labels = workReport.getLabels();
+                    updateLabel(labelDTO, labels);
+                } catch (InstanceNotFoundException e) {
+                    throw new ValidationException(
                         _("work report has not this label type assigned"));
+                }
             }
         }
 
         /*
          * 3: Update the existing description values
          */
-        for (DescriptionValueDTO valueDTO : workReportDTO.descriptionValues) {
+        if (workReportDTO.descriptionValues != null) {
+            for (DescriptionValueDTO valueDTO : workReportDTO.descriptionValues) {
 
-            /* Step 3.1: requires each description value DTO to have a code. */
-            if (StringUtils.isBlank(valueDTO.fieldName)) {
-                throw new ValidationException(
-                        _("missing field name in a description value"));
-            }
+                /* Step 3.1: requires each description value DTO to have a code. */
+                if (StringUtils.isBlank(valueDTO.fieldName)) {
+                    throw new ValidationException(
+                            _("missing field name in a description value"));
+                }
 
-            try {
-                DescriptionValue value = workReport
-                        .getDescriptionValueByFieldName(valueDTO.fieldName);
-                value.setValue(StringUtils.trim(valueDTO.value));
-            } catch (InstanceNotFoundException e) {
-                throw new ValidationException(
-                        _("work report has not any description value with this field name"));
+                try {
+                    DescriptionValue value = workReport
+                            .getDescriptionValueByFieldName(valueDTO.fieldName);
+                    value.setValue(StringUtils.trim(valueDTO.value));
+                } catch (InstanceNotFoundException e) {
+                    throw new ValidationException(
+                            _("work report has not any description value with this field name"));
+                }
             }
         }
 
@@ -404,7 +435,7 @@ public final class WorkReportConverter {
          */
 
         /* Step 4.1: Update the date. */
-        Date date = workReportDTO.date;
+        Date date = DateConverter.toDate(workReportDTO.date);
         workReport.setDate(date);
 
         /* Step 4.2: Update the resource. */
@@ -441,22 +472,24 @@ public final class WorkReportConverter {
         /*
          * 1: Update the existing labels
          */
-        for (LabelReferenceDTO labelDTO : workReportLineDTO.labels) {
+        if (workReportLineDTO.labels != null) {
+                for (LabelReferenceDTO labelDTO : workReportLineDTO.labels) {
 
-            /* Step 2.1: requires each label reference DTO to have a code. */
-            if (StringUtils.isBlank(labelDTO.code)) {
-                throw new ValidationException(_("missing code in a label"));
-            }
+                // * Step 2.1: requires each label reference DTO to have a code.
+                // */
+                if (StringUtils.isBlank(labelDTO.code)) {
+                    throw new ValidationException(_("missing code in a label"));
+                }
 
-            try {
-                Set<Label> labels = workReportLine.getLabels();
-                updateLabel(labelDTO, labels);
-            } catch (InstanceNotFoundException e) {
+                try {
+                    Set<Label> labels = workReportLine.getLabels();
+                    updateLabel(labelDTO, labels);
+                } catch (InstanceNotFoundException e) {
                 throw new ValidationException(
                         _("a work report line has not this label type assigned"));
+                }
             }
         }
-
         /*
          * 2: Update the existing description values
          */
@@ -468,7 +501,7 @@ public final class WorkReportConverter {
          */
 
         /* Step 3.1: Update the date. */
-        Date date = workReportLineDTO.date;
+        Date date = DateConverter.toDate(workReportLineDTO.date);
         workReportLine.setDate(date);
 
         /* Step 3.2: Update the resource. */
@@ -509,10 +542,12 @@ public final class WorkReportConverter {
          * hours.
          */
         if (workReportLineDTO.clockStart != null) {
-            workReportLine.setClockStart(workReportLineDTO.clockStart);
+            workReportLine.setClockStart(DateConverter
+                    .toLocalTime(workReportLineDTO.clockStart));
         }
         if (workReportLineDTO.clockFinish != null) {
-            workReportLine.setClockFinish(workReportLineDTO.clockFinish);
+            workReportLine.setClockFinish(DateConverter
+                    .toLocalTime(workReportLineDTO.clockFinish));
         }
 
         if (workReportLineDTO.numHours != null) {
@@ -524,21 +559,23 @@ public final class WorkReportConverter {
     private static void updateDescriptionValues(
             Set<DescriptionValueDTO> descriptionValues,
             WorkReportLine workReportLine) {
-        for (DescriptionValueDTO valueDTO : descriptionValues) {
+        if (descriptionValues != null) {
+            for (DescriptionValueDTO valueDTO : descriptionValues) {
 
-            /* Step 3.1: requires each description value DTO to have a code. */
-            if (StringUtils.isBlank(valueDTO.fieldName)) {
-                throw new ValidationException(
-                        _("missing field name in a description value"));
-            }
+                    /* Step 3.1: requires each description value DTO to have a code. */
+                if (StringUtils.isBlank(valueDTO.fieldName)) {
+                    throw new ValidationException(
+                            _("missing field name in a description value"));
+                }
 
-            try {
-                DescriptionValue value = workReportLine
+                try {
+                    DescriptionValue value = workReportLine
                         .getDescriptionValueByFieldName(valueDTO.fieldName);
-                value.setValue(StringUtils.trim(valueDTO.value));
-            } catch (InstanceNotFoundException e) {
+                    value.setValue(StringUtils.trim(valueDTO.value));
+                } catch (InstanceNotFoundException e) {
                 throw new ValidationException(
                         _("work report have not any description value with this field name"));
+                }
             }
         }
     }
diff --git a/navalplanner-webapp/src/test/java/org/navalplanner/web/test/ws/workreports/WorkReportServiceTest.java b/navalplanner-webapp/src/test/java/org/navalplanner/web/test/ws/workreports/WorkReportServiceTest.java
index 10e9070b8..aa4c58b0e 100644
--- a/navalplanner-webapp/src/test/java/org/navalplanner/web/test/ws/workreports/WorkReportServiceTest.java
+++ b/navalplanner-webapp/src/test/java/org/navalplanner/web/test/ws/workreports/WorkReportServiceTest.java
@@ -36,6 +36,7 @@ import java.util.Set;
 import java.util.UUID;
 
 import org.hibernate.SessionFactory;
+import org.joda.time.LocalDate;
 import org.joda.time.LocalTime;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -62,6 +63,7 @@ import org.navalplanner.business.workreports.valueobjects.DescriptionField;
 import org.navalplanner.ws.common.api.InstanceConstraintViolationsDTO;
 import org.navalplanner.ws.common.api.InstanceConstraintViolationsListDTO;
 import org.navalplanner.ws.common.api.LabelReferenceDTO;
+import org.navalplanner.ws.common.impl.DateConverter;
 import org.navalplanner.ws.workreports.api.DescriptionValueDTO;
 import org.navalplanner.ws.workreports.api.IWorkReportService;
 import org.navalplanner.ws.workreports.api.WorkReportDTO;
@@ -303,7 +305,8 @@ public class WorkReportServiceTest {
         workReportLineDTO.code = "work-report-line-code-" + UUID.randomUUID();
         workReportLineDTO.resource = resourceCode;
         workReportLineDTO.orderElement = orderElementCode;
-        workReportLineDTO.date = new Date();
+        workReportLineDTO.date = DateConverter
+                .toXMLGregorianCalendar(new Date());
         workReportLineDTO.typeOfWorkHours = typeOfWorkHoursCode;
         workReportLineDTO.numHours = 8;
 
@@ -473,8 +476,8 @@ public class WorkReportServiceTest {
         int previous = workReportDAO.getAll().size();
 
         WorkReportDTO workReportDTO = createWorkReportDTO(workReportTypeCode2);
-        Date date = new Date();
-        workReportDTO.date = date;
+        Date date = new LocalDate().toDateTimeAtStartOfDay().toDate();
+        workReportDTO.date = DateConverter.toXMLGregorianCalendar(date);
 
         WorkReportListDTO workReportListDTO = new WorkReportListDTO(Arrays
                 .asList(workReportDTO));
@@ -519,8 +522,10 @@ public class WorkReportServiceTest {
         int hours = 12;
         LocalTime start = new LocalTime(8, 0);
         LocalTime end = start.plusHours(hours);
-        workReportLineDTO.clockStart = start.toDateTimeToday().toDate();
-        workReportLineDTO.clockFinish = end.toDateTimeToday().toDate();
+        workReportLineDTO.clockStart = DateConverter
+                .toXMLGregorianCalendar(start);
+        workReportLineDTO.clockFinish = DateConverter
+                .toXMLGregorianCalendar(end);
 
         WorkReportListDTO workReportListDTO = new WorkReportListDTO(Arrays
                 .asList(workReportDTO));
diff --git a/scripts/rest-clients/workReportsSample.xml b/scripts/rest-clients/workReportsSample.xml
index dd13bc380..7ae768b72 100644
--- a/scripts/rest-clients/workReportsSample.xml
+++ b/scripts/rest-clients/workReportsSample.xml
@@ -1,59 +1,374 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes"?>
 <work-report-list xmlns="http://rest.ws.navalplanner.org">
-<work-report work-order="proxecto-00006-00009"
-  resource="30303030D" date="2010-03-09T00:00:00+01:00"
-  work-report-type="codeXX"
-  code="c3573671-1245-4b49-91b2-2f0914a5cf8b">
+
+
+<!-- the type wr1 has got the following structure
+Date:			heading
+Resource:		heading
+Order Element:		heading
+Hours Management:	Number of assigned hours.-->
+
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr1">
     <label-list>
-      <label code="b2b9cdee-2785-4c03-8e01-cec0a93b61aa" />
+      <label code="001-001" />
     </label-list>
     <work-report-line-list>
       <work-report-line hours="4"
-      finish-hour="2010-03-08T05:00:00+01:00"
-      start-hour="2010-03-08T01:00:00+01:00" hour-type="Normal"
-      work-order="proxecto-00006-00009" resource="30303030D"
-      date="2010-03-09T00:00:00+01:00"
-      code="77011765-2d77-4350-b315-84435d065a60">
-        <label-list>
-          <label code="774e42b9-c35c-4de2-a20b-487ff1c413ef" />
-        </label-list>
+      finish-hour="2010-03-08"
+      start-hour="2010-03-08" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09"
+      code="wrl1">
       </work-report-line>
        <work-report-line hours="6"
-      finish-hour="2010-03-08T07:00:00+01:00"
-      start-hour="2010-03-08T01:00:00+01:00" hour-type="Normal"
-      work-order="proxecto-00006-00009" resource="30303030D"
-      date="2010-03-09T00:00:00+01:00"
-      code="77011765-2d77-4350-b315-84435d065555">
-        <label-list>
-          <label code="a6256552-5ac7-46a7-95d6-8b8c8b415c65" />
-        </label-list>
+      finish-hour="2010-03-08"
+      start-hour="2010-03-08" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09"
+      code="wrl2">
       </work-report-line>
     </work-report-line-list>
   </work-report>
-  <work-report work-order="proxecto-00001-00002"
+
+
+<!-- repeated labels [OK , because it only saves one reference to the label  ]-->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr19">
+    <label-list>
+      <label code="001-001" />
+      <label code="001-001" />
+    </label-list>
+</work-report>
+
+
+<!-- work report type not found -->
+  <work-report work-order="PREFIX-00001"
   resource="66666666F" date="2010-03-18T00:00:00+01:00"
-  work-report-type="codeXY"
-  code="e230a3b4-3848-4ea9-9e7b-2c21e246200e">
-    <text-field-list>
-      <text-field value="oooh!" name="campoH" />
-    </text-field-list>
+  work-report-type="code not found"
+  code="wr2">
+  </work-report>
+
+<!-- with a incorrect date -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-13-09"
+  work-report-type="wrt1"
+  code="wr3">
+</work-report>
+
+<!-- with a incorrect order element code -->
+<work-report work-order="incorrect code"
+  resource="30303030D" date="2010-13-09"
+  work-report-type="wrt1"
+  code="wr4">
+</work-report>
+
+<!-- with a incorrect resource -->
+<work-report work-order="PREFIX-00001"
+  resource="resource not found" date="2010-13-09"
+  work-report-type="wrt1"
+  code="wr5">
+</work-report>
+
+<!-- code not specified  -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-11-09"
+  work-report-type="wrt1">
+</work-report>
+
+<!--label not assigned -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr6">
+    <label-list>
+      <label code="002-001" />
+    </label-list>
+ </work-report>
+
+<!-- label code not found -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr7">
+    <label-list>
+      <label code="002-001" />
+    </label-list>
+ </work-report>
+
+<!-- label code not found -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr8">
+    <label-list>
+      <label code="002-001" />
+    </label-list>
+ </work-report>
+
+<!-- missing finish-hour (wrl1) OK -->
+<!-- incorrect date (wrl2) OK -->
+<work-report work-order="PREFIX-00001"
+  resource="30303030D" date="2010-03-09"
+  work-report-type="wrt1"
+  code="wr9">
     <work-report-line-list>
-      <work-report-line hours="12" hour-type="Normal"
-      work-order="proxecto-00001-00002" resource="66666666F"
-      date="2010-03-18T00:00:00+01:00"
-      code="89ec8b66-5c21-4076-a06f-22f8e190dd36">
-        <text-field-list>
-          <text-field value="aaaaa" name="campoA" />
-        </text-field-list>
+      <work-report-line hours="4"
+      start-hour="2010-03-08" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09"
+      code="wr9-wrl1">
       </work-report-line>
-      <work-report-line hours="15" hour-type="Normal"
-      work-order="proxecto-00001-00002" resource="66666666F"
-      date="2010-03-18T00:00:00+01:00"
-      code="89ec8b66-5c21-4076-a06f-22f8e190dd98">
-        <text-field-list>
-          <text-field value="xxxxx" name="campoA" />
-        </text-field-list>
+       <work-report-line hours="6"
+      finish-hour="2010-03-08"
+      start-hour="2010-03-08" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="210-03-09"
+      code="wr9-wrl2">
       </work-report-line>
     </work-report-line-list>
   </work-report>
+
+
+<!-- the work report type has got the following structure:
+Date:			line
+Resource:		line
+Order Element:		line
+Hours Management: 	Number of hours calculated by clock -->
+
+<!-- missing finish-hour  OK -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr10">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      start-hour="201-07-05T00:00:00.000" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09" code="wr10-wrl2">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- incorrect start hour -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr10">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      start-hour="201-07-05T00:00:00.000" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09" code="wr10-wrl2">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- finish-hour is incorrect  -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr11">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="T01:00:00.000"
+      start-hour="T06:00:00.000" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09" code="wr11-wrl2">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- finish-hour is before start-hour  -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr12">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T01:00:00.000"
+      start-hour="2010-07-08T06:00:00.000" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="2010-03-09" code="wr12-wrl1">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- date incorrect  -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr13">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      work-order="PREFIX-00001" resource="30303030D"
+      date="200-03-09" code="wr13-wrl1">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- resource not specified -->
+<!-- order element not specified -->
+<work-report date="2010-03-09"
+  work-report-type="wrt3"
+  code="wr14">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-09" code="wr14-wrl1">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+
+<!-- the work report type (wrt4) has got the following structure :
+Date:			heading
+Resource:		heading
+Order Element:		heading
+Hours Management: 	Number of assigned hours and the time.
+ -->
+
+<!-- the work report date does not match with the work report line date [OK] -->
+<!-- the work report resource does not match with the work report line resource	[OK] -->
+<!-- the work report order element does not match with the work report order element [OK] -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr15">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr15-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- the work report have not assigned the description field" -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr16">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr16-wrl1">
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+
+<!-- Two work report lines with the same code -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr17">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr17-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr17-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- Two text-fields with the same name -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr18">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      finish-hour="2010-07-08T06:00:00.000"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr18-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+		<text-field name="etiqueta1" value="value-etiqueta2" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- missing finish-hour [OK] -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr20">
+    <work-report-line-list>
+       <work-report-line hours="6"
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr20-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+<!-- missing finish-hour and hours -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr21">
+    <work-report-line-list>
+       <work-report-line
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr21-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
+
+<!-- repeated work report line code  -->
+<work-report date="2010-03-09"
+  work-order="PREFIX-00001"
+  resource="30303030D"
+  work-report-type="wrt4"
+  code="wr22">
+	 <work-report-line-list>
+       <work-report-line
+      start-hour="2010-07-08T01:00:00.000" hour-type="t1"
+      date="2010-03-12" work-order="PREFIX-00022"
+      resource="w18-nif" code="wr20-wrl1">
+	    <text-field-list>
+		<text-field name="etiqueta1" value="value-etiqueta1" />
+	    </text-field-list>
+      </work-report-line>
+    </work-report-line-list>
+  </work-report>
+
 </work-report-list>