Mr Robertson was speaking at a national conference in Edinburgh to introduce the Investors In People initiative into Scotland's schools which was attended by over 100 delegates from the new unitary authorities, Scottish Enterprise, Highlands and Islands Enterprise and local enterprise companies
He said: 'Investing time in people, raising expectations and challenging existing priorities brings a rich reward - satisfied customers.
'It is clear to me that a good, highly -motivated staff, committed to the aims of the school, is likely to have satisfied customers - our young people, parents and employers. National competitiveness depends on a range of factors but I am in no doubt that the critical one is the skill and knowledge of each country's workforce.
'I believe that the Investors in People national standard would offer schools in Scotland a public recognition of excellence in this area and at the same time, would support the quality initiative in Scottish schools.
'Such moves could provide a major boost to morale and demonstrate that management and leadership in Scottish schools compare favourably with business and commerce.'