The present invention provides a method for allowing users to easily know changes in PII character strings in a context at the time of execution of software. One aspect is a method for translation verification including the acts of: creating four text files, each corresponding to old and new versions in a first language and a second language, from a set of old and new versions of PII files in the first language and old and new versions of PII files in the second language; creating an intermediate file, which uses a key name contained in the new version of text file in the first language and a file name as retrieval keys, from the four text files; and creating a PII file for translation verification in the second language with reference to the intermediate file, is provided. Furthermore, a method, for displaying a translated character string on a GUI screen on the basis of a change attribute ID, including an act of attaching, to the intermediate file, a change attribute ID representing a type of change in the text files obtained by comparing old and new versions of text files in the first language and the second language, is provided.