This paper examines needs, resources, and trends in the computer-based development of field-specific terminologies in varied languages. The range of special terminologies, their users, and their producers is noted, and the kinds of resources produced (data and tools) are outlined. Data types include: terminological information proper (information on field-specific concepts and their representation by linguistic and non-linguistic means); bibliographic data on publications in the field of terminology; and factual data on institutions, experts, programs, and other activities in the field. The differing processing systems required for each data type, and the forms of data presentation, are then described. Terminological tools include a variety of terminology application software: terminology management systems, databases, and data banks. Services related to the study of terminology include: consultancy and training in application of standards, tools, and project management; outsourcing for coping with limited terminological needs such as research on demand and creation and maintenance of software; and information services. It is suggested that Europe needs a public or semi-public infrastructure to promote, organize, and coordinate terminological activities by field experts and to organize networking. (MSE)