抄録
Considering the arising matter whether the principles and methods of terminology be extended to non-verbal representations or not, the fundamental discussions were made to clarify the characteristics of varieties of non-verbal representations. Special emphasis was put onto the iconic symbols, which came into use in the specialized communication. According to the degree of abstraction, several levels of non-verbal representation are identified. The defining requirements of "verbal" representations in the context of terminology was presented, which are; verbal representation consists of linear sequence of the elements of finite character set, connection between the elements are governed by the grammar of natural language, and a definite vocalization rule exists to convert the visual representations into phonetic representations. For the representations that do not fulfill above conditions, there exist difficulties in the application of conventional principles and methods of terminology.
