This study conducts a precise analysis of the formation process of the Eonmun Spelling System (1930) by examining its primary source materials: the Eonmun Spelling System (Internal Draft) (1928) and the Eonmun Spelling System (Base Text of the Revision) (1929). The 1930 orthography served as a significant turning point in the history of Korean writing systems by establishing the foundation for morphophonemic spelling through the expansion of the final consonant system and refinement of syllabic separation rules. Notably, this research uncovers and compares the Japanese version of the Base Text of the Revision, which had previously been studied only through Korean translations in newspapers such as Dong-a Ilbo. The findings reveal that these translations were not mere renditions, but intentional revisions reflecting the Deliberation Committee’s discussions and the translators’ normative orientations. Furthermore, by analyzing handwritten notes in the mimeographed original of the Base Text, this paper reconstructs debates on core issues, such as morphological representation, initial sound rules, fortis, and the epenthetic sound notation. Ultimately, this study illuminates the dynamic process through which the 1930 orthography emerged from negotiations between the government-general’s policy demands and the academic aspirations of Korean linguists.

This study analyzes the fifth edition of the enhanced spelling of the Indonesian language (EYD V) by comparing it with the original Indonesian spelling system (EBI) in terms of the use of character and punctuation. Specifically, it presumes that the frequent occurrence of errors in the Indonesian spelling systems is related to both indifference in Indonesian orthography and recurrent orthographic revisions. Based on this premise, it investigates differences between the original EBI, officially announced in 2015, and EYD V, the latest Indonesian spelling system, in terms of the use of character and punctuation. The analytic results found that EYD V includes several new elements, such as the introduction of a monophthong eu and the use of consonants q, x, and y at the end of words. Furthermore, it was found that EYD V provides the revised and supplemented contents compared to the original EBI from multiple perspectives by implementing enhanced consistency and timeliness in descriptions and error correction. The outcomes of this study are expected to serve as essential data for Indonesian writing education and as comparative data for discussions on Malay orthography in relation to Indonesian orthography.