INTERPAKS, Examines some examples of technology unsuited to farming systems in the less developed countries. Examples include the introduction of tractors in East Africa and certain aspects of mechanizing rice production in Asia. Examples are also given of some promising developments of indigenous technology in Asia and West Africa. Attention is also drawn to some of the undesirable effects of both national and international policies on mechanization transfer, especially when it is linked to foreign aid. Notes that institutional barriers, arising from existing structures for aid, trade and education, can impede the development and spread of more appropriate technologies in the less developed countries. Indicates that appropriate technology for a given situation, whether imported or locally developed, can be considered to be a particular form of technology which is in harmony with the prevailing socioeconomic conditions and management expertise. Emphasizes that machine compatibility with its working environment is just as important as its function. Indicates that this will require a new approach to training and education of engineers and technologists in the less developed countries, and that such experts will play a greater role in the planning and execution of schemes using mechanization.