manufacture/mrp_operations_time_control/views/operation_time_view.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>

        <record id="view_operation_time_lines_search" model="ir.ui.view">
            <field name="name">operation.time.line.search</field>
            <field name="model">operation.time.line</field>
            <field name="arch" type="xml">
                <search string="Search Operation Time Lines">
                    <group expand="1" string="Group By...">
                        <filter name="uptimegroup"
                                string="Work Order"
                                context="{'group_by' : 'operation_time'}"
                        />
                        <filter name="productiongroup"
                                string="Production Order"
                                context="{'group_by' : 'production'}"
                        />
                        <filter name="usergroup"
                                string="User"
                                context="{'group_by' : 'user'}"
                        />
                    </group>
                </search>
            </field>
        </record>

        <record model="ir.ui.view" id="operation_time_form_view">
            <field name="name">Operation Time Form View</field>
            <field name="model">mrp.production.workcenter.line</field>
            <field name="inherit_id"
                ref="mrp_operations.mrp_production_workcenter_form_view_inherit" />
            <field name="arch" type="xml">
                <page string="Information" position="after">
                    <page string="Machine up time">
                        <field name="operation_time_lines" />
                    </page>
                </page>
                <button name="button_done" position="attributes">
                    <attribute name="states">startworking,pause</attribute>
                </button>
            </field>
        </record>

        <record model="ir.ui.view" id="operation_time_tree_view">
            <field name="name">Operation Time Form View</field>
            <field name="model">mrp.production.workcenter.line</field>
            <field name="inherit_id"
                ref="mrp_operations.mrp_production_workcenter_tree_view_inherit" />
            <field name="arch" type="xml">
                <field name="state" position="after">
                    <button name="button_draft"
                            string="Set Draft"
                            states="cancel"
                            icon="gtk-convert"
                    />
                    <button name="button_start_working"
                            string="Start"
                            states="draft"
                            icon="gtk-media-play"
                    />
                    <button name="button_resume"
                            string="Resume"
                            states="pause"
                            icon="gtk-media-pause"
                    />
                    <button name="button_pause"
                            string="Pending"
                            states="startworking"
                            icon="gtk-media-pause"
                    />
                    <button name="button_done"
                            string="Finished"
                            states="startworking"
                            icon="terp-check"
                    />
                </field>
            </field>
        </record>
        
        <record model="ir.ui.view" id="operation_time_lines_form_view">
            <field name="name">operation.time.line.form</field>
            <field name="model">operation.time.line</field>
            <field name="arch" type="xml">
                <form string="Operation time lines">
                    <group>
                        <field name="user" readonly="1"/>
                        <field name="start_date" />
                        <field name="end_date" />
                        <field name="operation_time" />
                        <field name="uptime" />hours
                        <field name="production"/>
                    </group>
                </form>
            </field>
        </record>

        <record model="ir.ui.view" id="operation_time_lines_tree_view">
            <field name="name">operation.time.line.tree</field>
            <field name="model">operation.time.line</field>
            <field name="arch" type="xml">
                <tree string="Operation time lines">
                    <field name="user"/>
                    <field name="start_date" />
                    <field name="end_date" />
                    <field name="operation_time" />
                    <field name="uptime" sum="Machine up time" />
                    <field name="production"/>
                </tree>
            </field>
        </record>

        <record id="operation_time_lines_action" model="ir.actions.act_window">
            <field name="name">Operation Time Lines</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">operation.time.line</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="context">{'search_default_uptimegroup': 1, 'search_default_internal_loc': 1}</field>
        </record>

        <menuitem action="operation_time_lines_action"
                  id="menu_operation_time_lines_action"
                  parent="mrp.menu_mrp_manufacturing" sequence="10" />

    </data>
</openerp>