diff --git a/addons/account/views/account_invoice_view.xml b/addons/account/views/account_invoice_view.xml
index d155344b843..6a482a551bc 100644
--- a/addons/account/views/account_invoice_view.xml
+++ b/addons/account/views/account_invoice_view.xml
@@ -230,10 +230,10 @@
                 <field name="has_outstanding" invisible="1"/>
                 <sheet string="Vendor Bill">
                     <div>
-                        <label string="Draft Bill" attrs="{'invisible': ['|',('state','&lt;&gt;','draft'), ('type','&lt;&gt;','in_invoice')]}"/>
-                        <label string="Draft Refund" attrs="{'invisible': ['|',('state','&lt;&gt;','draft'), ('type','&lt;&gt;','in_refund')]}"/>
-                        <label string="Bill " attrs="{'invisible': ['|',('state', '=', 'draft'), ('type','&lt;&gt;','in_invoice')]}"/>
-                        <label string="Refund " attrs="{'invisible': ['|',('state', '=', 'draft'), ('type','&lt;&gt;','in_refund')]}"/>
+                        <label string="Draft Bill" attrs="{'invisible': ['|',('state','!=','draft'), ('type','!=','in_invoice')]}"/>
+                        <label string="Draft Refund" attrs="{'invisible': ['|',('state','!=','draft'), ('type','!=','in_refund')]}"/>
+                        <label string="Bill " attrs="{'invisible': ['|',('state', '=', 'draft'), ('type','!=','in_invoice')]}"/>
+                        <label string="Refund " attrs="{'invisible': ['|',('state', '=', 'draft'), ('type','!=','in_refund')]}"/>
                         <h1 class="mt0">
                             <field name="number" class="oe_inline"  attrs="{'invisible': [('state', '=', 'draft')]}"/>
                         </h1>
@@ -364,10 +364,10 @@
                 </div>
                 <field name="has_outstanding" invisible="1"/>
                 <sheet string="Invoice">
-                    <label string="Refund" attrs="{'invisible': ['|',('state','=','draft'), ('type','&lt;&gt;','out_refund')]}"/>
+                    <label string="Refund" attrs="{'invisible': ['|',('state','=','draft'), ('type','!=','out_refund')]}"/>
                     <h1 class="mt0">
-                        <label string="Draft Invoice" attrs="{'invisible': ['|',('state','not in',('draft',)), ('type','&lt;&gt;','out_invoice')]}"/>
-                        <label string="Draft Refund" attrs="{'invisible': ['|',('state','not in',('draft',)), ('type','&lt;&gt;','out_refund')]}"/>
+                        <label string="Draft Invoice" attrs="{'invisible': ['|',('state','not in',('draft',)), ('type','!=','out_invoice')]}"/>
+                        <label string="Draft Refund" attrs="{'invisible': ['|',('state','not in',('draft',)), ('type','!=','out_refund')]}"/>
                         <field name="number" readonly="1" class="oe_inline" attrs="{'invisible': [('state','in',('draft',))]}"/>
                     </h1>
                     <field name="type" invisible="1"/>
diff --git a/addons/account/wizard/account_invoice_refund_view.xml b/addons/account/wizard/account_invoice_refund_view.xml
index 170ec5f67ce..1db8833860f 100644
--- a/addons/account/wizard/account_invoice_refund_view.xml
+++ b/addons/account/wizard/account_invoice_refund_view.xml
@@ -13,18 +13,18 @@
                              <field name="filter_refund" attrs="{'invisible': [('refund_only','=',True)]}" widget="radio"/>
                          </group>
                          <group>
-                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','&lt;&gt;','refund')]}" class="oe_grey" colspan="4">
+                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','!=','refund')]}" class="oe_grey" colspan="4">
                                 You will be able to edit and validate this
                                 credit note directly or keep it draft,
                                 waiting for the document to be issued by
                                 your supplier/customer.
                              </div>
-                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','&lt;&gt;','cancel')]}" class="oe_grey" colspan="4">
+                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','!=','cancel')]}" class="oe_grey" colspan="4">
                                 Use this option if you want to cancel an invoice you should not
                                 have issued. The credit note will be created, validated and reconciled
                                 with the invoice. You will not be able to modify the credit note.
                              </div>
-                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','&lt;&gt;','modify')]}" class="oe_grey" colspan="4">
+                             <div attrs="{'invisible':['|',('refund_only','=',True),('filter_refund','!=','modify')]}" class="oe_grey" colspan="4">
                                 Use this option if you want to cancel an invoice and create a new
                                 one. The credit note will be created, validated and reconciled
                                 with the current invoice. A new, draft, invoice will be created 
diff --git a/addons/hr_payroll/views/hr_payroll_views.xml b/addons/hr_payroll/views/hr_payroll_views.xml
index 55600f3f27b..65d86afc89f 100644
--- a/addons/hr_payroll/views/hr_payroll_views.xml
+++ b/addons/hr_payroll/views/hr_payroll_views.xml
@@ -149,8 +149,8 @@
                     <group string="Calculations">
                         <field name="category_id"/>
                         <field name="amount_select"/>
-                        <field name="amount_fix"  attrs="{'readonly':[('amount_select','&lt;&gt;','fix')]}"/>
-                        <field name="amount_percentage"  attrs="{'readonly':[('amount_select','&lt;&gt;','percentage')]}"/>
+                        <field name="amount_fix"  attrs="{'readonly':[('amount_select','!=','fix')]}"/>
+                        <field name="amount_percentage"  attrs="{'readonly':[('amount_select','!=','percentage')]}"/>
                         <field name="sequence"/>
                     </group>
                     <field name="note"/>
@@ -236,7 +236,7 @@
                         </div>
                         <field name="contract_id" domain="[('employee_id','=',employee_id),('date_start','&lt;=',date_to),'|',('date_end','&gt;=',date_from),('date_end','=',False)]" context="{'default_employee_id': employee_id}"/>
                         <field name="number"/>
-                        <field name="struct_id" attrs="{'required':[('contract_id','&lt;&gt;',False)]}"/>
+                        <field name="struct_id" attrs="{'required':[('contract_id','!=',False)]}"/>
                         <field name="name"/>
                         <field name="credit_note"/>
                     </group>
@@ -590,17 +590,17 @@
                             <group col="4">
                                 <separator colspan="4" string="Conditions"/>
                                 <field name="condition_select"/><newline/>
-                                <field name="condition_python" attrs="{'invisible':[('condition_select','&lt;&gt;','python')], 'required': [('condition_select','=','python')]}" colspan="4"/> <newline/>
-                                <field name="condition_range" attrs="{'invisible':[('condition_select','&lt;&gt;','range')], 'required':[('condition_select','=','range')]}"/><newline/>
-                                <field name="condition_range_min" colspan="2" attrs="{'invisible':[('condition_select','&lt;&gt;','range')], 'required':[('condition_select','=','range')]}"/><newline/>
-                                <field name="condition_range_max" colspan="2" attrs="{'invisible':[('condition_select','&lt;&gt;','range')], 'required':[('condition_select','=','range')]}"/><newline/>
+                                <field name="condition_python" attrs="{'invisible':[('condition_select','!=','python')], 'required': [('condition_select','=','python')]}" colspan="4"/> <newline/>
+                                <field name="condition_range" attrs="{'invisible':[('condition_select','!=','range')], 'required':[('condition_select','=','range')]}"/><newline/>
+                                <field name="condition_range_min" colspan="2" attrs="{'invisible':[('condition_select','!=','range')], 'required':[('condition_select','=','range')]}"/><newline/>
+                                <field name="condition_range_max" colspan="2" attrs="{'invisible':[('condition_select','!=','range')], 'required':[('condition_select','=','range')]}"/><newline/>
                                 <separator colspan="4" string="Computation"/>
                                 <field name="amount_select"/><newline/>
-                                <field name="amount_percentage_base" attrs="{'invisible':[('amount_select','&lt;&gt;','percentage')], 'required': [('amount_select','=','percentage')]}"/><newline/>
+                                <field name="amount_percentage_base" attrs="{'invisible':[('amount_select','!=','percentage')], 'required': [('amount_select','=','percentage')]}"/><newline/>
                                 <field name="quantity" attrs="{'invisible':[('amount_select','=','code')], 'required':[('amount_select','!=','code')]}"/><newline/>
-                                <field name="amount_fix"  attrs="{'invisible':[('amount_select','&lt;&gt;','fix')], 'required':[('amount_select','=','fix')]}"/><newline/>
-                                <field colspan="4" name="amount_python_compute" attrs="{'invisible':[('amount_select','&lt;&gt;','code')], 'required':[('amount_select','=','code')]}"/>
-                                <field name="amount_percentage" attrs="{'invisible':[('amount_select','&lt;&gt;','percentage')], 'required':[('amount_select','=','percentage')]}"/>
+                                <field name="amount_fix"  attrs="{'invisible':[('amount_select','!=','fix')], 'required':[('amount_select','=','fix')]}"/><newline/>
+                                <field colspan="4" name="amount_python_compute" attrs="{'invisible':[('amount_select','!=','code')], 'required':[('amount_select','=','code')]}"/>
+                                <field name="amount_percentage" attrs="{'invisible':[('amount_select','!=','percentage')], 'required':[('amount_select','=','percentage')]}"/>
                                 <separator colspan="4" string="Company Contribution"/>
                                 <field name="register_id"/>
                             </group>
diff --git a/addons/mail/views/mail_channel_views.xml b/addons/mail/views/mail_channel_views.xml
index 61079a6638a..e78ed6928ba 100644
--- a/addons/mail/views/mail_channel_views.xml
+++ b/addons/mail/views/mail_channel_views.xml
@@ -114,7 +114,7 @@
                                 <group class="o_label_nowrap">
                                     <field name="public" widget="radio" string="Who can follow the group's activities?"/>
                                     <field name="group_public_id"
-                                        attrs="{'invisible': [('public','&lt;&gt;','groups')], 'required': [('public','=','groups')]}"
+                                        attrs="{'invisible': [('public','!=','groups')], 'required': [('public','=','groups')]}"
                                         />
                                     <field name="group_ids" widget="many2many_tags"/>
                                 </group>
diff --git a/addons/mass_mailing/views/mass_mailing_views.xml b/addons/mass_mailing/views/mass_mailing_views.xml
index 567f6cefb37..5a3344408b7 100644
--- a/addons/mass_mailing/views/mass_mailing_views.xml
+++ b/addons/mass_mailing/views/mass_mailing_views.xml
@@ -353,7 +353,7 @@
                                     attrs="{'invisible': [('mailing_model', '=', 'mail.mass_mailing.list')]}"
                                     options="{'model': 'mailing_model'}"
                                     context="{'search_default_not_opt_out':1}"/>
-                                <div attrs="{'invisible': [('mailing_model', '&lt;&gt;', 'mail.mass_mailing.list')]}">
+                                <div attrs="{'invisible': [('mailing_model', '!=', 'mail.mass_mailing.list')]}">
                                     <label for="contact_list_ids" string="Select mailing lists:" class="oe_edit_only"/>
                                     <field name="contact_list_ids" widget="many2many_tags"
                                         placeholder="Select mailing lists..." class="oe_inline"/>
diff --git a/addons/point_of_sale/views/pos_order_view.xml b/addons/point_of_sale/views/pos_order_view.xml
index 6a5b21a329b..2e6a6d0a5bd 100644
--- a/addons/point_of_sale/views/pos_order_view.xml
+++ b/addons/point_of_sale/views/pos_order_view.xml
@@ -89,7 +89,7 @@
                             <group>
                                 <field name="sale_journal" domain="[('type','=','sale')]"/>
                                 <field name="account_move" readonly="1"
-                                        attrs="{'invisible':[('state','&lt;&gt;','done')]}"/>
+                                        attrs="{'invisible':[('state','!=','done')]}"/>
                             </group>
                         </group>
                     </page>
diff --git a/addons/purchase/report/purchase_report_views.xml b/addons/purchase/report/purchase_report_views.xml
index c331452e7d4..10ff55f08b5 100644
--- a/addons/purchase/report/purchase_report_views.xml
+++ b/addons/purchase/report/purchase_report_views.xml
@@ -29,21 +29,21 @@
         <record id="filter_purchase_order_monthly_purchases" model="ir.filters">
             <field name="name">Monthly Purchases</field>
             <field name="model_id">purchase.report</field>
-            <field name="domain">[('state','&lt;&gt;','cancel')]</field>
+            <field name="domain">[('state','!=','cancel')]</field>
             <field name="user_id" eval="False"/>
             <field name="context">{'group_by': ['category_id'], 'col_group_by': ['date_order:month'], 'measures': ['unit_quantity']}</field>
         </record>
         <record id="filter_purchase_order_price_per_supplier" model="ir.filters">
             <field name="name">Price Per Vendor</field>
             <field name="model_id">purchase.report</field>
-            <field name="domain">[('state','&lt;&gt;','draft'),('state','&lt;&gt;','cancel')]</field>
+            <field name="domain">[('state','!=','draft'),('state','!=','cancel')]</field>
             <field name="user_id" eval="False"/>
             <field name="context">{'group_by': ['partner_id'], 'col_group_by': ['product_id'], 'measures': ['price_average']}</field>
         </record>
         <record id="filter_purchase_order_average_delivery_time" model="ir.filters">
             <field name="name">Average Delivery Time</field>
             <field name="model_id">purchase.report</field>
-            <field name="domain">[('state','&lt;&gt;','draft'),('state','&lt;&gt;','cancel')]</field>
+            <field name="domain">[('state','!=','draft'),('state','!=','cancel')]</field>
             <field name="user_id" eval="False"/>
             <field name="context">{'group_by': ['partner_id'], 'measures': ['delay_pass']}</field>
         </record>
@@ -55,7 +55,7 @@
         <field name="arch" type="xml">
             <search string="Purchase Orders">
                 <filter string="Quotations" name="quotes" domain="[('state','=','draft')]"/>
-                <filter string="Orders" name="orders" domain="[('state','&lt;&gt;','draft'),('state','&lt;&gt;','cancel')]"/>
+                <filter string="Orders" name="orders" domain="[('state','!=','draft'),('state','!=','cancel')]"/>
                 <field name="partner_id"/>
                 <field name="product_id"/>
                 <group expand="0" string="Extended Filters">
diff --git a/addons/report/views/res_company_view.xml b/addons/report/views/res_company_view.xml
index 59ecb2078a8..3864ba91b4e 100644
--- a/addons/report/views/res_company_view.xml
+++ b/addons/report/views/res_company_view.xml
@@ -8,7 +8,7 @@
         <field name="arch" type="xml">
             <form string="Company">
                 <field name="logo" invisible="1"/>
-                <div class="alert alert-warning" attrs="{'invisible': [('logo','&lt;&gt;',False)]}">
+                <div class="alert alert-warning" attrs="{'invisible': [('logo','!=',False)]}">
                     <p>
                         <strong>No logo found!</strong>
                         To get a beautiful document, you should review your
diff --git a/addons/sale/views/sale_views.xml b/addons/sale/views/sale_views.xml
index e8f6a34b9be..3e5d27281bf 100644
--- a/addons/sale/views/sale_views.xml
+++ b/addons/sale/views/sale_views.xml
@@ -573,7 +573,7 @@
             <field name="model">sale.order.line</field>
             <field name="arch" type="xml">
                 <search string="Search Sales Order">
-                    <filter string="To Invoice" domain="[('qty_to_invoice','&lt;&gt;', 0)]"  help="Sales Order Lines ready to be invoiced"/>
+                    <filter string="To Invoice" domain="[('qty_to_invoice','!=', 0)]"  help="Sales Order Lines ready to be invoiced"/>
                     <separator/>
                     <filter string="My Sales Order Lines" domain="[('salesman_id','=',uid)]" help="Sales Order Lines related to a Sales Order of mine"/>
                     <field name="order_id"/>
diff --git a/addons/sale_timesheet/views/product_views.xml b/addons/sale_timesheet/views/product_views.xml
index 5525ae66d73..a518ad70fd2 100644
--- a/addons/sale_timesheet/views/product_views.xml
+++ b/addons/sale_timesheet/views/product_views.xml
@@ -10,7 +10,7 @@
                 <attribute name="attrs">{'invisible': [('type','!=','service')]}</attribute>
             </xpath>
             <field name="track_service" position="after">
-                <field name="project_id" attrs="{'invisible':['|', ('type','!=','service'), ('track_service', '&lt;&gt;', 'task')]}"/>
+                <field name="project_id" attrs="{'invisible':['|', ('type','!=','service'), ('track_service', '!=', 'task')]}"/>
             </field>
         </field>
     </record>
diff --git a/addons/stock/views/stock_picking_views.xml b/addons/stock/views/stock_picking_views.xml
index f2ef3f5f6cb..34c4f6e50f0 100644
--- a/addons/stock/views/stock_picking_views.xml
+++ b/addons/stock/views/stock_picking_views.xml
@@ -403,7 +403,7 @@
                     <separator/>
                     <filter name="late" string="Late" domain="[('min_date','&lt;', time.strftime('%%Y-%%m-%%d %%H:%%M:%%S'))]" help="Pickings that are late on scheduled time"/>
                     <separator/>
-                    <filter name="backorder" string="Backorders" domain="[('backorder_id','&lt;&gt;', False)]" help="Remaining parts of picking partially processed"/>
+                    <filter name="backorder" string="Backorders" domain="[('backorder_id','!=', False)]" help="Remaining parts of picking partially processed"/>
                     <separator/>
                     <filter string="My Activities" name="activities_my"
                         domain="[('activity_ids.user_id', '=', uid)]"/>
diff --git a/addons/website_crm_partner_assign/views/crm_lead_views.xml b/addons/website_crm_partner_assign/views/crm_lead_views.xml
index 9f81738a80f..277ab9ac3f0 100644
--- a/addons/website_crm_partner_assign/views/crm_lead_views.xml
+++ b/addons/website_crm_partner_assign/views/crm_lead_views.xml
@@ -21,7 +21,7 @@
                             </div>
                             <button string="Automatic Assignation" name="action_assign_partner" type="object" class="btn-link"/>
 
-                            <field name="partner_assigned_id" domain="[('grade_id','&lt;&gt;',False)]"/>
+                            <field name="partner_assigned_id" domain="[('grade_id','!=',False)]"/>
                             <button string="Send Email" type="action" class="btn-link"
                                 attrs="{'invisible':[('partner_assigned_id','=',False)]}"
                                 name="%(crm_lead_forward_to_partner_act)d"
@@ -82,7 +82,7 @@
                             </div>
                             <button string="Automatic Assignation" name="action_assign_partner" type="object" class="btn-link"/>
 
-                            <field name="partner_assigned_id" domain="[('grade_id','&lt;&gt;',False)]"/>
+                            <field name="partner_assigned_id" domain="[('grade_id','!=',False)]"/>
                             <button string="Send Email" type="action" class="btn-link"
                                 attrs="{'invisible':[('partner_assigned_id','=',False)]}"
                                 name="%(crm_lead_forward_to_partner_act)d"
diff --git a/addons/website_forum_doc/views/doc.xml b/addons/website_forum_doc/views/doc.xml
index 0e8b7cf3caf..c96f2768434 100644
--- a/addons/website_forum_doc/views/doc.xml
+++ b/addons/website_forum_doc/views/doc.xml
@@ -66,7 +66,7 @@
             <field name="res_model">forum.post</field>
             <field name="view_type">form</field>
             <field name="view_mode">kanban,tree,form</field>
-            <field name="domain">[('documentation_toc_id','&lt;&gt;', False)]</field>
+            <field name="domain">[('documentation_toc_id','!=', False)]</field>
         </record>
         <menuitem id="menu_forum_doc_posts"
             parent="website_forum.menu_website_forum" name="Documentation Posts"
diff --git a/odoo/addons/base/ir/ir_model_view.xml b/odoo/addons/base/ir/ir_model_view.xml
index f76cc4b416a..ad4307b9e76 100644
--- a/odoo/addons/base/ir/ir_model_view.xml
+++ b/odoo/addons/base/ir/ir_model_view.xml
@@ -9,7 +9,7 @@
                 <form string="Create Menu">
                     <group>
                         <field name="name"/>
-                        <field name="menu_id" domain="[('parent_id','&lt;&gt;',False)]"/>
+                        <field name="menu_id" domain="[('parent_id','!=',False)]"/>
                     </group>
                     <footer>
                         <button name="menu_create" string="Create _Menu" type="object" class="btn-primary"/>
diff --git a/odoo/addons/base/res/res_partner_view.xml b/odoo/addons/base/res/res_partner_view.xml
index 0d3c610f565..d4bba3e1595 100644
--- a/odoo/addons/base/res/res_partner_view.xml
+++ b/odoo/addons/base/res/res_partner_view.xml
@@ -281,9 +281,9 @@
                                             <group>
                                                 <field name="name" string="Contact Name" attrs="{'required' : [('type', '=', 'contact')]}"/>
                                                 <field name="title" placeholder="e.g. Mr."
-                                                    attrs="{'invisible': [('type','&lt;&gt;', 'contact')]}"/>
+                                                    attrs="{'invisible': [('type','!=', 'contact')]}"/>
                                                 <field name="function" placeholder="e.g. Sales Director"
-                                                    attrs="{'invisible': [('type','&lt;&gt;', 'contact')]}"/>
+                                                    attrs="{'invisible': [('type','!=', 'contact')]}"/>
                                                 <field name="email"/>
                                                 <field name="phone" widget="phone"/>
                                                 <field name="mobile" widget="phone"/>
@@ -512,7 +512,7 @@
             <field name="type">ir.actions.act_window</field>
             <field name="res_model">res.partner</field>
             <field name="view_type">form</field>
-            <field name="domain">[('supplier','&lt;&gt;',1),('customer','&lt;&gt;',1)]</field>
+            <field name="domain">[('supplier','!=',1),('customer','!=',1)]</field>
             <field name="filter" eval="True"/>
         </record>