diff --git a/addons/hr_payroll/hr_payroll.py b/addons/hr_payroll/hr_payroll.py
index 132d8fc1104..e4597aa0c8d 100644
--- a/addons/hr_payroll/hr_payroll.py
+++ b/addons/hr_payroll/hr_payroll.py
@@ -164,17 +164,17 @@ class contrib_register(osv.osv):
 
 contrib_register()
 
-class hr_salary_head(osv.osv):
+class hr_salary_category(osv.osv):
     """
-    HR Salary Head
+    HR Salary Category
     """
 
-    _name = 'hr.salary.head'
-    _description = 'Salary Head'
+    _name = 'hr.salary.category'
+    _description = 'Salary Category'
     _columns = {
         'name':fields.char('Name', size=64, required=True, readonly=False),
         'code':fields.char('Code', size=64, required=True, readonly=False),
-        'parent_id':fields.many2one('hr.salary.head', 'Parent', help="Linking a salary head to its parent is used only for the reporting purpose."),
+        'parent_id':fields.many2one('hr.salary.category', 'Parent', help="Linking a salary category to its parent is used only for the reporting purpose."),
         'note': fields.text('Description'),
         'company_id':fields.many2one('res.company', 'Company', required=False),
         'sequence': fields.integer('Sequence', required=True, help='Display sequence order'),
@@ -187,7 +187,7 @@ class hr_salary_head(osv.osv):
         'sequence': 5
     }
 
-hr_salary_head()
+hr_salary_category()
 
 class one2many_mod2(fields.one2many):
 
@@ -212,11 +212,11 @@ class hr_payslip(osv.osv):
     _name = 'hr.payslip'
     _description = 'Pay Slip'
 
-    def _get_lines_salary_head(self, cr, uid, ids, field_names, arg=None, context=None):
+    def _get_lines_salary_category(self, cr, uid, ids, field_names, arg=None, context=None):
         result = {}
         if not ids: return result
         cr.execute('''SELECT pl.slip_id, pl.id FROM hr_payslip_line AS pl \
-                    LEFT JOIN hr_salary_head AS sh on (pl.category_id = sh.id) \
+                    LEFT JOIN hr_salary_category AS sh on (pl.category_id = sh.id) \
                     WHERE pl.slip_id in %s \
                     GROUP BY pl.slip_id, sh.sequence, pl.sequence, pl.id ORDER BY sh.sequence, pl.sequence''',(tuple(ids),))
         res = cr.fetchall()
@@ -253,7 +253,7 @@ class hr_payslip(osv.osv):
         'paid': fields.boolean('Made Payment Order ? ', required=False, readonly=True, states={'draft': [('readonly', False)]}),
         'note': fields.text('Description'),
         'contract_id': fields.many2one('hr.contract', 'Contract', required=False, readonly=True, states={'draft': [('readonly', False)]}),
-        'details_by_salary_head': fields.function(_get_lines_salary_head, method=True, type='one2many', relation='hr.payslip.line', string='Details by Salary Head'),
+        'details_by_salary_category': fields.function(_get_lines_salary_category, method=True, type='one2many', relation='hr.payslip.line', string='Details by Salary Head'),
         'credit_note': fields.boolean('Credit Note', help="Indicates this payslip has a refund of another"),
     }
     _defaults = {
@@ -473,10 +473,10 @@ class hr_payslip(osv.osv):
         return res
 
     def get_payslip_lines(self, cr, uid, contract_ids, payslip_id, context):
-        def _sum_salary_head(localdict, head, amount):
-            if head.parent_id:
-                localdict = _sum_salary_head(localdict, head.parent_id, amount)
-            localdict['heads'][head.code] = head.code in localdict['heads'] and localdict['heads'][head.code] + amount or amount
+        def _sum_salary_category(localdict, category, amount):
+            if category.parent_id:
+                localdict = _sum_salary_category(localdict, category.parent_id, amount)
+            localdict['categories'][category.code] = category.code in localdict['categories'] and localdict['categories'][category.code] + amount or amount
             return localdict
 
         #we keep a dict with the result because a value can be overwritten by another rule with the same code
@@ -487,7 +487,7 @@ class hr_payslip(osv.osv):
         worked_days = {}
         for input_line in payslip.input_line_ids:
             worked_days[input_line.code] = input_line
-        localdict = {'heads': {}, 'payslip': payslip, 'worked_days': worked_days}
+        localdict = {'categories': {}, 'payslip': payslip, 'worked_days': worked_days}
         #get the ids of the structures on the contracts and their parent id as well
         structure_ids = self.pool.get('hr.contract').get_all_structures(cr, uid, contract_ids, context=context)
         #get the rules of the structure and thier children
@@ -510,7 +510,7 @@ class hr_payslip(osv.osv):
                     #set/overwrite the amount computed for this rule in the localdict
                     localdict[rule.code] = amount
                     #sum the amount for its salary head
-                    localdict = _sum_salary_head(localdict, rule.category_id, amount - previous_amount)
+                    localdict = _sum_salary_category(localdict, rule.category_id, amount - previous_amount)
                     #create/overwrite the rule in the temporary results
                     result_dict[key] = {
                         'salary_rule_id': rule.id,
@@ -644,7 +644,7 @@ class hr_salary_rule(osv.osv):
         'code':fields.char('Code', size=64, required=True),
         'sequence': fields.integer('Sequence', required=True, help='Use to arrange calculation sequence'),
         'quantity': fields.char('Quantity', size=256, help="It is used in computation for percentage and fixed amount.For e.g. A rule for Meal Voucher having fixed amount of 1€ per worked day can have its quantity defined in expression like worked_days['WORK100']['number_of_days']."),
-        'category_id':fields.many2one('hr.salary.head', 'Salary Head', required=True),
+        'category_id':fields.many2one('hr.salary.category', 'Category', required=True),
         'active':fields.boolean('Active', help="If the active field is set to false, it will allow you to hide the salary rule without removing it."),
         'appears_on_payslip': fields.boolean('Appears on Payslip', help="Used for the display of rule on payslip"),
         'parent_rule_id':fields.many2one('hr.salary.rule', 'Parent Salary Rule', select=True),
@@ -684,7 +684,7 @@ class hr_salary_rule(osv.osv):
 # employee: hr.employee object
 # contract: hr.contract object
 # rules: rules code (previously computed)
-# heads: dictionary containing the computed heads (sum of amount of all rules belonging to that head). Keys are the head codes.
+# categories: dictionary containing the computed categories (sum of amount of all rules belonging to that category). Keys are the category codes.
 # worked_days: dictionary containing the computed worked days. Keys are the worked days codes.
 
 # Note: returned value have to be set in the variable 'result'
@@ -698,12 +698,12 @@ result = contract.wage * 0.10''',
 # employee: hr.employee object
 # contract: hr.contract object
 # rules: rules code (previously computed)
-# heads: dictionary containing the computed heads (sum of amount of all rules belonging to that head). Keys are the head codes.
+# categories: dictionary containing the computed categories (sum of amount of all rules belonging to that category). Keys are the category codes.
 # worked_days: dictionary containing the computed worked days. Keys are the worked days codes.
 
 # Note: returned value have to be set in the variable 'result'
 
-result = rules['NET'] > heads['NET'] * 0.10''',
+result = rules['NET'] > categories['NET'] * 0.10''',
         'condition_range': 'contract.wage',
         'sequence': 5,
         'appears_on_payslip': True,
diff --git a/addons/hr_payroll/hr_payroll_data.xml b/addons/hr_payroll/hr_payroll_data.xml
index 21273bfa725..49253ca90b4 100644
--- a/addons/hr_payroll/hr_payroll_data.xml
+++ b/addons/hr_payroll/hr_payroll_data.xml
@@ -2,32 +2,32 @@
 <openerp>
     <data noupdate="1">
     
-        <record id="BASIC" model="hr.salary.head">
+        <record id="BASIC" model="hr.salary.category">
             <field name="name">Basic</field>
             <field name="code">BASIC</field>
         </record>
     
-        <record id="ALW" model="hr.salary.head">
+        <record id="ALW" model="hr.salary.category">
             <field name="name">Allowance</field>
             <field name="code">ALW</field>
         </record>
         
-        <record id="DED" model="hr.salary.head">
+        <record id="DED" model="hr.salary.category">
             <field name="name">Deduction</field>
             <field name="code">DED</field>
         </record>
         
-        <record id="GROSS" model="hr.salary.head">
+        <record id="GROSS" model="hr.salary.category">
             <field name="name">Gross</field>
             <field name="code">GROSS</field>
         </record>
         
-        <record id="NET" model="hr.salary.head">
+        <record id="NET" model="hr.salary.category">
             <field name="name">Net</field>
             <field name="code">NET</field>
         </record>
         
-        <record id="COMP" model="hr.salary.head">
+        <record id="COMP" model="hr.salary.category">
             <field name="name">Company Contribution</field>
             <field name="code">COMP</field>
         </record>
@@ -177,7 +177,7 @@
             <field name="category_id" ref="hr_payroll.GROSS"/>
             <field name="condition_select">none</field>
             <field name="amount_select">code</field>
-            <field name="amount_python_compute">result = heads['BASIC'] + ('ALW' in heads and heads['ALW'] or 0.0)</field>
+            <field name="amount_python_compute">result = categories['BASIC'] + ('ALW' in categories and categories['ALW'] or 0.0)</field>
         </record>
 
         <record id="hr_rule_net" model="hr.salary.rule">
@@ -187,7 +187,7 @@
             <field name="category_id" ref="hr_payroll.NET"/>
             <field name="condition_select">none</field>
             <field name="amount_select">code</field>
-            <field name="amount_python_compute">result = heads['BASIC'] + ('ALW' in heads and heads['ALW'] or 0.0) + ('DED' in heads and heads['DED'] or 0.0)</field>
+            <field name="amount_python_compute">result = categories['BASIC'] + ('ALW' in categories and categories['ALW'] or 0.0) + ('DED' in categories and categories['DED'] or 0.0)</field>
         </record>
 
 
diff --git a/addons/hr_payroll/hr_payroll_view.xml b/addons/hr_payroll/hr_payroll_view.xml
index 40a52a6c74e..1f39afc2462 100644
--- a/addons/hr_payroll/hr_payroll_view.xml
+++ b/addons/hr_payroll/hr_payroll_view.xml
@@ -260,8 +260,8 @@
                             </field>
                         </page>
 <!-- TODO: put me back -->
-	                    <page string="Details By Salary Head">
-                            <field name="details_by_salary_head" context="{'group_by':'category_id'}" domain="[('appears_on_payslip', '=', True)]" nolabel="1">
+	                    <page string="Details By Salary Category">
+                            <field name="details_by_salary_category" context="{'group_by':'category_id'}" domain="[('appears_on_payslip', '=', True)]" nolabel="1">
                                 <tree string="Payslip Lines" colors="blue:total == 0">
                                     <field name="category_id"/>
                                     <field name="name"/>
@@ -347,9 +347,9 @@
         <menuitem action="action_view_hr_payslip_form" id="menu_department_tree" parent="menu_hr_root_payroll"/>
 
         <!-- Payment Heads -->
-        <record id="hr_salary_head_form" model="ir.ui.view">
-            <field name="name">hr.salary.head.form</field>
-            <field name="model">hr.salary.head</field>
+        <record id="hr_salary_category_form" model="ir.ui.view">
+            <field name="name">hr.salary.category.form</field>
+            <field name="model">hr.salary.category</field>
             <field name="type">form</field>
             <field name="arch" type="xml">
                 <form string="Salary Heads">
@@ -365,9 +365,9 @@
             </field>
         </record>
 
-        <record id="hr_salary_head_tree" model="ir.ui.view">
-            <field name="name">hr.salary.head.tree</field>
-            <field name="model">hr.salary.head</field>
+        <record id="hr_salary_category_tree" model="ir.ui.view">
+            <field name="name">hr.salary.category.tree</field>
+            <field name="model">hr.salary.category</field>
             <field name="type">tree</field>
             <field name="arch" type="xml">
                 <tree string="Salary Heads">
@@ -379,9 +379,9 @@
             </field>
         </record>
 
-        <record id="view_hr_salary_head_filter" model="ir.ui.view">
-            <field name="name">hr.salary.head.select</field>
-            <field name="model">hr.salary.head</field>
+        <record id="view_hr_salary_category_filter" model="ir.ui.view">
+            <field name="name">hr.salary.category.select</field>
+            <field name="model">hr.salary.category</field>
             <field name="type">search</field>
             <field name="arch" type="xml">
                 <search string="Salary Heads">
@@ -391,16 +391,16 @@
             </field>
         </record>
 
-        <record id="action_hr_salary_head" model="ir.actions.act_window">
-            <field name="name">Salary Heads</field>
-            <field name="res_model">hr.salary.head</field>
+        <record id="action_hr_salary_category" model="ir.actions.act_window">
+            <field name="name">Salary Categories</field>
+            <field name="res_model">hr.salary.category</field>
             <field name="view_type">form</field>
-            <field name="view_id" ref="hr_salary_head_tree"/>
-           <field name="search_view_id" ref="view_hr_salary_head_filter"/>
+            <field name="view_id" ref="hr_salary_category_tree"/>
+           <field name="search_view_id" ref="view_hr_salary_category_filter"/>
         </record>
         <menuitem
-            id="menu_hr_salary_head"
-            action="action_hr_salary_head"
+            id="menu_hr_salary_category"
+            action="action_hr_salary_category"
             parent="payroll_configure"
             sequence="11"
         />
diff --git a/addons/hr_payroll/security/ir.model.access.csv b/addons/hr_payroll/security/ir.model.access.csv
index 609fc99c034..9fe2fd67498 100644
--- a/addons/hr_payroll/security/ir.model.access.csv
+++ b/addons/hr_payroll/security/ir.model.access.csv
@@ -1,7 +1,7 @@
 "id","name","model_id:id","group_id:id","perm_read","perm_write","perm_create","perm_unlink"
 "access_hr_payroll_structure","hr.payroll.structure","model_hr_payroll_structure","base.group_hr_user",1,1,1,1
 "access_hr_contribution_register","hr.contribution.register","model_hr_contribution_register","base.group_hr_user",1,1,1,1
-"access_hr_salary_head","hr.salary.head","model_hr_salary_head","base.group_hr_user",1,1,1,1
+"access_hr_salary_category","hr.salary.category","model_hr_salary_category","base.group_hr_user",1,1,1,1
 "access_hr_payslip","hr.payslip","model_hr_payslip","base.group_hr_user",1,1,1,1
 "access_hr_payslip_line","hr.payslip.line","model_hr_payslip_line","base.group_hr_user",1,1,1,1
 "access_res_partner_payroll","res.partner.payroll","base.model_res_partner","base.group_hr_user",1,1,1,1