Abstract
The introduction into developing countries of a formal modelling approach in Agriculture Sector Analysis (ASA) has received increasing attention over the past five years. The authors are of the opinion that the application of models in ASA is at least partly blocked by the non-availability in an operational form of the spatial dimension of some essential information. In the context of a case study, the potential use of a computerised grid-based data handling system in combination with aerial photointerpretation is explained and illustrated by an example dealing with land use, seasonal agricultural employment and gross value added. The information obtained by the data handling procedures can be used for an analytical (ASA) model and vice versa.
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