Measuring Terminology Consistency in Translated Corpora: Implementation of the Herfindahl-Hirshman Index

Consistent terminology can positively influence communication, information transfer, and proper understanding. In multilingual written communication processes, challenges are augmented due to translation variants. The main aim of this study was implement the Herfindahl-Hirshman Index (HHI) for assessment translated in parallel corpora evaluation terminology. This research conducted on three types legal domain subcorpora, dating from different periods: Croatian-English corpus (1991–2009), Latin-English Latin-Croatian versions Code Canon Law (1983), English Croatian EU legislation (2013). After extraction process, validation term candidates performed, followed by an evaluation. Terminology consistency measured using HHI—a commonly accepted measurement market concentration. Results show that HHI be used measuring improve transfer message settings, process shows need quality management solutions.