Information technology (IT) outsourcing is a favourable option for enhancing core organisational competencies/ activities. Provident decision making in selecting an optimum IT outsourcing vendor involves judgements about qualitative and quantitative factors. The paper discusses IT outsourcing and proposes a customised computer-orientated model based on action research and analytical hierarchy process. The aims are to: specify, combine, structure, measure and prioritise key qualitative and quantitative risk elements in IT outsourcing; and provide relevant information to support managers in outsourcing decision making. The results are expected to help managers in minimising business risks and in improving quality of IT outsourcing. Appreciation and gratitude are offered to Alex Paterson of Renfrewshire Enterprise, Paisley and to the Manufacturing Director, Ian McNair, and other management personnel at Compaq Computer Manufacturing Limited, Bishopton, Scotland, for their support in the research programme.