Here is just one thing to do: create the Python function which is called by the automated action. The Python function process_demo_check_queue will automatically create and update the value called by automated action.
So let us create this in the Python file that uses the model check.demo in own module in openerp-9

class check_demo(models.Model):
    _name = 'check.demo'
    name = fields.Char(required=True)
    numberOfUpdates = fields.Integer('Number of updates', help='The number of times the check has run and updated this field')
    lastModified = fields.Date('Last updated')

    #This function is called when the check goes off
    def process_demo_check_queue(self, cr, uid, context=None):
       def process_demo_check_queue(self, cr, uid, context=None):
check_line_obj = self.pool.get('check.demo')
#Contains all ids for the model check.demo
   check_line_ids = self.pool.get('check.demo').search(cr, uid, [])   
#Loops over every record in the model check.demo
        for check_line_id in check_line_ids :
    #Contains all details from the record in the variable check_line
            check_line =check_line_obj.browse(cr, uid,check_line_id ,context=context)
    numberOfUpdates = check_line.numberOfUpdates
    #Prints out the name of every record.
            _logger.info('line: ' + check_line.name)
    #Update the record
    check_line_obj.write(cr, uid, check_line_id, {'numberOfUpdates': (numberOfUpdates +1), 'lastModified': datetime.date.today()}, context=context)