The aim of the study is to analyze the process of document design in a multilingual setting. In order to evaluate translation quality, a theoretical perspective is formulated as a basis for criteria for a good translation. In this perspective, the target text is considered an autonomous document. Two sets of criteria are distinguished: correctness errors and functional errors. The tools that were used to assess translation quality were expert analysis and reader focused evaluation. For both tools, a multilingual evaluation team was formed with the highest possible expertise in the target languages, in linguistics, and in usability. In this case study, the process of evaluation and the results are described.