Abstract
This paper reports on the conceptualisation of a multivariate interactive computerised teacher demand and supply decision support model of projection for the Further Education and Training band (FET) of public schools for the Gauteng Province of South Africa. This model was conceptualised with the view to enabling policy makers to make projections that estimate aggregate or disaggregate teacher supply and demand. A reductionist methodological approach was used in this inquiry with the intention of reducing the ideas surrounding teacher supply and demand into a discrete set of variables reflected in a multivariate model. It also reflects a deterministic philosophy of cause and effect, as variables are manipulated within the model. Knowledge is developed in this inquiry through the development of multiple numeric measures of the objective reality of teacher supply and demand. The main contribution of this inquiry is the computerised disaggregated teacher supply and demand projection model. This model not only contributes to the knowledge base of educational planning and forecasting, but provides a clearer picture of the complex variables involved in teacher supply and demand as well.