diff --git a/configuration_equipment.py b/configuration_equipment.py
index faeaf33..a9e40dd 100644
--- a/configuration_equipment.py
+++ b/configuration_equipment.py
@@ -16,3 +16,6 @@ class Configuration(ModelSingleton, ModelSQL, ModelView):
     agended_sequence = fields.Many2One('ir.sequence', "Agended Sequence",
                         domain=[('sequence_type', '=', Id('optical_equipment', 'sequence_type_agended'))
                                 ])
+    contract_sequence = fields.Many2One('ir.sequence', "Contract Sequence",
+                        domain=[('sequence_type', '=', Id('optical_equipment', 'sequence_type_contract'))
+                                ])
diff --git a/contract.py b/contract.py
index 1389dd0..0ff6091 100644
--- a/contract.py
+++ b/contract.py
@@ -15,12 +15,12 @@ import datetime
 from datetime import timedelta
 
 
-class Contract(ModelSQL, ModelView):
+class Contract(Workflow, ModelSQL, ModelView):
     'Contracts'
     __name__ = 'optical_equipment.contract'
 
     company = fields.Many2One(
-        'company.company', "Company", readonly=True, required=True, select=True,
+        'company.company', "Company", required=True, select=True,
         states={
             'readonly': (Eval('state') != 'draft') | Eval('party', True),
             },help="Make the subscription belong to the company.")
@@ -35,30 +35,34 @@ class Contract(ModelSQL, ModelView):
             'readonly': Eval('state') != 'draft',
             })
     party = fields.Many2One(
-        'party.party', "Party", readonly=True, required=True,
-        help="The party who subscribes.")
-    contact = fields.Many2One('party.contact_mechanism', "Contact", readonly=True)
-    invoice_address = fields.Many2One('party.address', 'Invoice Address', readonly=True,
-        required=True, domain=[('party', '=', Eval('party'))])
-    start_date = fields.Date("Start Date", readonly=True, required=False,)
-    end_date = fields.Date(
-        "End Date", readonly=True,
-        domain=['OR',
-                ('end_date', '>=', If(
-                    Bool(Eval('start_date')),
-                    Eval('start_date', datetime.date.min),
-                    datetime.date.min)),
-            ('end_date', '=', None),
-            ],
+        'party.party', "Party", required=True,
         states={
-            'readonly': Eval('state') != 'draft',
-            }
-    )
+            'readonly': (Eval('state') != 'draft') | Eval('party', True),
+            },help="The party who subscribes.")
+    contact = fields.Many2One('party.contact_mechanism', "Contact", readonly=True, required=True)
+    invoice_address = fields.Many2One('party.address', 'Invoice Address',
+                                      required=True, domain=[('party', '=', Eval('party'))],
+                                      states={
+                                          'readonly': (Eval('state') != 'draft') | Eval('party', True),
+                                      })
+    start_date = fields.Date("Start Date", required=True,)
+    end_date = fields.Date("End Date",
+                           domain=['OR',
+                                   ('end_date', '>=', If(
+                                       Bool(Eval('start_date')),
+                                       Eval('start_date', datetime.date.min),
+                                       datetime.date.min)),
+                                   ('end_date', '=', None),
+                                   ],
+                           states={
+                               'readonly': Eval('state') != 'draft',
+                           })
     maintenance_services = fields.Many2Many('optical_equipment_maintenance.service-equipment.contract',
                                             'contract', 'maintenance_services', "Prorogues")
+    equipments = fields.Many2Many('optical_equipment.contract-optical_equipment.equipment', 'contract', 'equipment')
+    #equipments = fields.One2Many('optical_equipment.equipment', "contract_history", "Equipments")
     state = fields.Selection([
             ('draft', "Draft"),
-            ('quotation', "Quotation"),
             ('running', "Running"),
             ('closed', "Closed"),
             ('cancelled', "Cancelled"),
@@ -69,6 +73,16 @@ class Contract(ModelSQL, ModelView):
     @classmethod
     def __setup__(cls):
         super(Contract, cls).__setup__()
+        cls._transitions = ({
+            ('draft', 'running'),
+            ('running', 'closed'),
+            ('running', 'cancelled'),
+        })
+        cls._buttons.update({
+            'running': {'invisible': Eval('state').in_(['cancelled', 'running'])},
+            'cancelled': {'invisible': Eval('state').in_(['draft', 'cancelled'])}
+        })
+
 
     @staticmethod
     def default_company():
@@ -78,6 +92,18 @@ class Contract(ModelSQL, ModelView):
     def default_state():
         return 'draft'
 
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('running')
+    def running(cls, contracts):
+        pass
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('cancelled')
+    def cancelled(cls, contracts):
+        pass
+
         
 
 class ContractMaintenanceServices(ModelSQL):
diff --git a/contract.xml b/contract.xml
index 76c81f9..59f5a10 100644
--- a/contract.xml
+++ b/contract.xml
@@ -35,15 +35,6 @@
 	<field name="count" eval="True"/>
 	<field name="act_window" ref="act_contract_form"/>
     </record>
-    <record model="ir.action.act_window.domain"
-	id="act_contract_form_domain_quotation">
-	<field name="name">Quotation</field>
-	<field name="sequence" eval="20"/>
-	<field name="domain" eval="[('state', '=', 'quotation')]"
-	    pyson="1"/>
-	<field name="count" eval="True"/>
-	<field name="act_window" ref="act_contract_form"/>
-    </record>
     <record model="ir.action.act_window.domain"
 	id="act_contract_form_domain_running">
 	<field name="name">Running</field>
@@ -93,7 +84,42 @@
 	<field name="string">Quotation</field>
 	<field name="confirm">Are you sure you want to quote these subscription?</field>
 	<field name="model" search="[('model', '=', 'optical_equipment.contract')]"/>
-    </record> -->
+	</record> -->
+    <record model="ir.model.button" id="contrac_running_button">
+	<field name="name">running</field>
+	<field name="string">Run</field>
+	<field name="model" search="[('model', '=', 'optical_equipment.contract')]"/>
+    </record>
+    <record model="ir.model.button" id="contract_cancelled_button">
+	<field name="name">cancelled</field>
+	<field name="string">Cancel</field>
+	<field name="model" search="[('model', '=', 'optical_equipment.contract')]"/>
+    </record>
+    <record model="res.group" id="group_contract_admin">
+	<field name="name">Contract Administration</field>
+    </record>
+    <record model="res.user-res.group"
+	    id="user_admin_group_contract_admin">
+        <field name="user" ref="res.user_admin"/>
+	<field name="group" ref="group_contract_admin"/>
+    </record>
+    <record model="ir.sequence.type" id="sequence_type_contract">
+	<field name="name">Contract</field>
+    </record>
+    <record model="ir.sequence.type-res.group"
+	    id="sequence_type_contract_group_admin">
+	<field name="sequence_type" ref="sequence_type_contract"/>
+        <field name="group" ref="res.group_admin"/>
+    </record>
+    <record model="ir.sequence.type-res.group"
+            id="sequence_type_contract_group_contract_admin">
+	<field name="sequence_type" ref="sequence_type_contract"/>
+        <field name="group" ref="group_contract_admin"/>
+    </record>
+    <record model="ir.sequence" id="sequence_contract">
+	<field name="name">Contract</field>
+        <field name="sequence_type" ref="sequence_type_contract"/>
+    </record>
     <menuitem
 	parent="menu_equipment"
 	name="Contracts Management"
diff --git a/equipment.py b/equipment.py
index 112a873..67c86ba 100644
--- a/equipment.py
+++ b/equipment.py
@@ -14,6 +14,7 @@ from trytond.model.exceptions import AccessError
 _MAINTENANCE_FREQUENCY = [("none", ''),
                           ("6", 'Seis Meses'),
                           ("12", 'Doce Meses')]
+
 class OpticalEquipment(DeactivableMixin, Workflow, ModelSQL, ModelView):
     'Optical Equipment'
     __name__ = 'optical_equipment.equipment'
@@ -92,7 +93,6 @@ class OpticalEquipment(DeactivableMixin, Workflow, ModelSQL, ModelView):
     #subscription_history = fields.Many2Many('sale.subscription-optical_equipment.equipment',
     #                    'equipment','subscription', "Subscriptions",
     #                    states={'readonly': True})
-
     contract_history = fields.Many2Many('optical_equipment.contract-optical_equipment.equipment',
                                         'equipment', 'contract')
  
diff --git a/locale/es.po b/locale/es.po
index f04ae91..45540a6 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -24,7 +24,7 @@ msgstr "Medidas del Equipo"
 
 msgctxt "view:product.template:"
 msgid "Enviromental Working Conditions"
-msgstr "Condciones Ambientales de Trabajo"
+msgstr "Condiciones Ambientales de Trabajo"
 
 msgctxt "view:product.template:"
 msgid "Electrical Conditions"
@@ -362,7 +362,6 @@ msgctxt "field:purchase.line,health_register:"
 msgid "Health Register"
 msgstr "Registro Invima"
 
-
 msgctxt "model:ir.ui.menu,name:menu_contracts"
 msgid "Contracts Management"
 msgstr "Gestión de Contratos"
@@ -379,7 +378,6 @@ msgctxt "model:ir.ui.menu,name:menu_contract_form"
 msgid "Contracts"
 msgstr "Contratos"
 
-
 msgctxt "field:optical_equipment.contract,company:"
 msgid "Company"
 msgstr "Compañia"
@@ -477,7 +475,6 @@ msgctxt "selection:optical_equipment.contract,state:"
 msgid "Cancelled"
 msgstr "Cancelado"
 
-
 msgctxt "model:ir.action.act_window.domain,name:act_contract_form_domain_draft"
 msgid "Draft"
 msgstr "Borrador"
@@ -493,3 +490,187 @@ msgstr "En Ejecución"
 msgctxt "model:ir.action.act_window.domain,name:act_contract_form_domain_all"
 msgid "All"
 msgstr "Todo"
+
+msgctxt "model:ir.ui.menu,name:menu_diary"
+msgid "Diary"
+msgstr "Agendas"
+
+msgctxt "model:ir.ui.menu,name:menu_agenda_form"
+msgid "Calendar"
+msgstr "Calendario"
+
+msgctxt "model:ir.ui.menu,name:menu_agended_list_form"
+msgid "Agended"
+msgstr "Agenda"
+
+msgctxt "model:ir.ui.menu,name:menu_assing_agended_form"
+msgid "Assing Agended"
+msgstr "Asignar Agenda"
+
+msgctxt "model:ir.ui.menu,name:menu_reassing_agended_form"
+msgid "ReAssing Agended"
+msgstr "Reagendar"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_draft"
+msgid "Draft"
+msgstr "Borrador"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_agended"
+msgid "Agended"
+msgstr "Agendados"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_in_progress"
+msgid "In Progress"
+msgstr "En Proceso"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_failed"
+msgid "Failed"
+msgstr "Fallido"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_finished"
+msgid "Finished"
+msgstr "Finalizado"
+
+msgctxt "model:ir.action.act_window.domain,name:act_agended_list_form_domain_all"
+msgid "All"
+msgstr "Todo"
+
+msgctxt "field:optical_equipment_maintenance.diary,code:"
+msgid "Code"
+msgstr "Código"
+
+msgctxt "field:optical_equipment_maintenance.diary,date_expected:"
+msgid "Expected Date"
+msgstr "Fecha Esperada"
+
+msgctxt "field:optical_equipment_maintenance.diary,date_estimated:"
+msgid "Estimated Date"
+msgstr "Fecha Estimada"
+
+msgctxt "field:optical_equipment_maintenance.diary,date_end:"
+msgid "Date End"
+msgstr "Fecha Efectiva"
+
+msgctxt "field:optical_equipment_maintenance.diary,maintenance_service:"
+msgid "Maintenance Service"
+msgstr "Servicio de Mantenimiento"
+
+msgctxt "field:optical_equipment_maintenance.diary,technical:"
+msgid "Technical"
+msgstr "Técnico"
+
+msgctxt "field:optical_equipment_maintenance.diary,state:"
+msgid "State"
+msgstr "Estado"
+
+msgctxt "selection:optical_equipment_maintenance.diary,state:"
+msgid "Draft"
+msgstr "Borrador"
+
+msgctxt "selection:optical_equipment_maintenance.diary,state:"
+msgid "Agended"
+msgstr "Agendado"
+
+msgctxt "selection:optical_equipment_maintenance.diary,state:"
+msgid "In Progress"
+msgstr "En Proceso"
+
+msgctxt "selection:optical_equipment_maintenance.diary,state:"
+msgid "Failed"
+msgstr "Fallido"
+
+msgctxt "selection:optical_equipment_maintenance.diary,state:"
+msgid "Finished"
+msgstr "Finalizado"
+
+msgctxt "model:ir.ui.menu,name:menu_maintenance_service_form"
+msgid "Services Maintenance"
+msgstr "Servicios de Mantenimiento"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_draft"
+msgid "Draft"
+msgstr "Borrador"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_agended"
+msgid "Agended"
+msgstr "Agendado"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_in_progress"
+msgid "In Progress"
+msgstr "En Proceso"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_failed"
+msgid "Failed"
+msgstr "Fallido"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_finished"
+msgid "Finished"
+msgstr "Finalizado"
+
+msgctxt "model:ir.action.act_window.domain,name:act_maintenance_service_form_domain_all"
+msgid "All"
+msgstr "Todo"
+
+msgctxt "field:optical_equipment_maintenance.service,code:"
+msgid "Code"
+msgstr "Código"
+
+msgctxt "field:optical_equipment_maintenance.service,reference:"
+msgid "Reference"
+msgstr "Referencia"
+
+msgctxt "field:optical_equipment_maintenance.service,description:"
+msgid "Description"
+msgstr "Descripción"
+
+msgctxt "field:optical_equipment_maintenance.service,sale_date:"
+msgid "Sale Date"
+msgstr "Fecha de Venta"
+
+msgctxt "field:optical_equipment_maintenance.service,contract_origin:"
+msgid "Contract Base"
+msgstr "Contrato Base"
+
+msgctxt "field:optical_equipment_maintenance.service,sale_origin:"
+msgid "Sale Origin"
+msgstr "Origen de la Venta"
+
+msgctxt "field:optical_equipment_maintenance.service,company:"
+msgid "Company"
+msgstr "Empresa"
+
+msgctxt "field:optical_equipment_maintenance.service,maintenance_type:"
+msgid "Maintenance Type"
+msgstr "Tipo de Mantenimiento"
+
+msgctxt "field:optical_equipment_maintenance.service,propietary:"
+msgid "Propietary"
+msgstr "Propietario"
+
+msgctxt "field:optical_equipment_maintenance.service,propietary_address:"
+msgid "Propietary Address"
+msgstr "Dirección del Propietario"
+
+msgctxt "field:optical_equipment_maintenance.service,lines:"
+msgid "Lines"
+msgstr "Líneas"
+
+msgctxt "field:optical_equipment_maintenance.service,estimated_agended:"
+msgid "Date Maintenance"
+msgstr "Fecha de Mantenimiento"
+
+msgctxt "field:optical_equipment_maintenance.service,history_agended:"
+msgid "History Agended"
+msgstr "Agenda Historica"
+
+msgctxt "field:optical_equipment_maintenance.service,state_agended:"
+msgid "State Agenda"
+msgstr "Estado de la Agenda"
+
+msgctxt "field:optical_equipment_maintenance.service,technical:"
+msgid "Technical"
+msgstr "Técnico"
+
+msgctxt "field:optical_equipment_maintenance.service,state:"
+msgid "State"
+msgstr "Estado"
diff --git a/maintenance.py b/maintenance.py
index 297d37b..9c4f3a6 100644
--- a/maintenance.py
+++ b/maintenance.py
@@ -156,29 +156,33 @@ class Maintenance(Workflow, ModelSQL, ModelView):
     'Equipment Maintenance'
     __name__ = 'optical_equipment.maintenance'
 
+    _states={'required': True}
 
     service_maintenance = fields.Many2One('optical_equipment_maintenance.service', "Maintenance Service",
                                           ondelete='CASCADE', select=True)
     code = fields.Char(
         "Code", select=True,states={'readonly': True })
-
     maintenance_type = fields.Selection([('preventive', 'Preventive'),
                                          ('corrective', 'Corrective')
-                                         ], "Maintenance Type")
+                                         ], "Maintenance Type", states=_states)
     state = fields.Selection([('draft', "Draft"),
                               ('finished', "Finished")
-                              ], "State",required=True, readonly=True, sort=False)
+                              ], "State", readonly=True, sort=False,
+                             states=_states)
     company = fields.Many2One('company.company', "Company", readonly=True)
-    propietary = fields.Many2One('party.party', "Propietary",
+    propietary = fields.Many2One('party.party', "Propietary", states=_states,
                                  depends=['service_maintenance'])
     propietary_address = fields.Many2One('party.address', "Propietary Address",
+                                         states=_states,
                                          domain=[('party', '=', Eval('propietary'))],
                                          depends=['service_maintenance'])
-    equipment = fields.Many2One('optical_equipment.equipment', "Equipment", required=True,
+    equipment = fields.Many2One('optical_equipment.equipment', "Equipment",
                                 domain=[('propietary', '=', Eval('propietary'))],
+                                states=_states,
                                 depends=['service_maintenance'])
     #when the maintenance is in agended status
-    diary = fields.One2Many('optical_equipment_maintenance.diary', 'diary')
+    diary = fields.One2Many('optical_equipment_maintenance.diary', 'diary',
+                            states=_states)
     #estimated_agended = fields.DateTime("Date Maintenance")
     #state_agended = fields.Selection([('no_agenda', "No agenda"),
     #                                  ('agended', "Agended"),
@@ -195,7 +199,7 @@ class Maintenance(Workflow, ModelSQL, ModelView):
     clean_eyes = fields.Boolean("Limpieza de lentes y espejos")
     optical = fields.Boolean("Optical")
     check_calibration = fields.Boolean("Verificar Calibración")
-    maintenance_activity = fields.One2Many('optical_equipment_maintenance.activity', 'maintenance', "Maintenance Activitys")
+    maintenance_activity = fields.One2Many('optical_equipment_maintenance.activity', 'maintenance', "Maintenance Activitys", states=_states)
     #Calibration
     patterns_equipments = fields.Char("K Pattern", states={'readonly': True},
                                       depends=['equipment'])
@@ -230,7 +234,7 @@ class Maintenance(Workflow, ModelSQL, ModelView):
         cls._buttons.update({
             'in_progress': {'invisible': Eval('state').in_(['draft', 'in_progress', 'finished'])},
             'finished': {'invisible': Eval('state').in_(['finished'])},
-            'calibrate': {'invisible': Eval('lines_calibration') == () | Eval('state') == 'finished'}
+            'calibrate': {'invisible': (Eval('lines_calibration') == () | Eval('state').in_(['finished']),)}
                 })
 
     @classmethod
@@ -699,12 +703,18 @@ class CreateContract(Wizard):
 
         dates = self._subscription_start
 
+        
         prorogues = (maintenance_service,)
+        equipments = []
+        for equipment in maintenance_service.lines:
+            equipments.append(equipment.id)
+            
         contract = Contract(party=dates['party'],
                             invoice_address=dates['invoice_address'],
                             contact=dates['contact'],
                             start_date=dates['start_date'],
                             end_date=dates['end_date'],
-                            maintenance_services=prorogues
+                            maintenance_services=prorogues,
+                            equipments=equipments
                             )
         contract.save()
diff --git a/product.py b/product.py
index 42ea185..ce3e9d9 100644
--- a/product.py
+++ b/product.py
@@ -156,27 +156,31 @@ class Template(metaclass=PoolMeta):
     warranty = fields.Integer("Warranty")
 
     #### calibration parameters
-    MEP = fields.Float("MEP")
-    uncertainy_pattern = fields.Float("Uncertainy Pattern",
+    MEP = fields.Float("MEP", states={'required': Eval('calibration', False)},)
+    uncertainy_pattern = fields.Float("Uncertainy Pattern", states={'required': Eval('calibration', True)}, 
                                      help="Agregar valores separados por ',' Ej:-5,+5,-10,+10")
-    k_pattern = fields.Char("K Pattern",
+    k_pattern = fields.Char("K Pattern",states={'required': Eval('calibration', False)},
                             help="Agregar valores separados por ',' Ej:-5,+5,-10,+10")
-    k_pattern_list = fields.One2Many('optical_equipment.product_pattern', 'product', "List of patterns K")
+    k_pattern_list = fields.One2Many('optical_equipment.product_pattern', 'product', "List of patterns K",
+                                     states={'required': Eval('calibration', False)},)
     resolution_type = fields.Selection([('',""),
                                     ('analoga', "Analoga"),
                                     ('digital', "Digital")], "Resolution Type",
                                    states={'required': Eval('calibration', False)},
                                    depends=['calibration'])
     d_resolution = fields.Float("Resolution d",
-                                states={'invisible': If(Eval('resolution_type') != 'digital', True)},
+                                states={'invisible': If(Eval('resolution_type') != 'digital', True),
+                                        'required': Eval('calibration', False)},
                                 depends=['resolution_type'])
     analog_resolution = fields.Float("Analog resolution",
-                                states={'invisible': If(Eval('resolution_type') != 'analoga', True)},
+                                states={'invisible': If(Eval('resolution_type') != 'analoga', True),
+                                        'required': Eval('calibration', False)},
                                 depends=['resolution_type'])
     a_factor_resolution = fields.Float("(a) Resolution",
-                                states={'invisible': If(Eval('resolution_type') != 'analoga', True)},
+                                states={'invisible': If(Eval('resolution_type') != 'analoga', True),
+                                        'required': Eval('calibration', False)},
                                 depends=['resolution_type'])
-    Usubi = fields.Integer("Usub i")
+    Usubi = fields.Integer("Usub i",states={'required': Eval('calibration', False)},)
 
 
     @classmethod
diff --git a/view/contract_form.xml b/view/contract_form.xml
index c4da53f..6efb21d 100644
--- a/view/contract_form.xml
+++ b/view/contract_form.xml
@@ -25,22 +25,20 @@ this repository contains the full copyright notices and license terms. -->
 	    <field name="maintenance_services"/>
 	</page>
 	<page string="Equipments" id="equipments">
-	    <!--
-		<field name="equipments"/>
-	    -->
+	    <field name="equipments"/>
 	</page>
 	<page string="Other Info" id="other">
 	    <label name="company"/>
 	    <field name="company"/>
-	 </page>
+	</page>
+	
     </notebook>
     <label name="state"/>
     <field name="state"/>
     <group col="2" colspan="2" id="button">
 	<!--<button name="draft"/> -->
-	<!--
-	<button name="quotation"/>	
-	<button name="run"/>
+	<button name="cancelled"/>	
+	<button name="running"/>
 	-->
     </group>
 </form>
diff --git a/view/optical_equipment_configuration_form.xml b/view/optical_equipment_configuration_form.xml
index 9422012..39cea63 100644
--- a/view/optical_equipment_configuration_form.xml
+++ b/view/optical_equipment_configuration_form.xml
@@ -12,5 +12,8 @@ this repository contains the full copyright notices and license terms. -->
     <newline/>
     <label name="agended_sequence"/>
     <field name="agended_sequence"/>
+    <newline/>
+    <label name="contract_sequence"/>
+    <field name="contract_sequence"/>
 </form>