Nounの上で; Noun上(で)
Usage
Nの上(うえ)で and N上(じょう) indicate that the speaker's statement refers only to N. The phrase is commonly used in written language. "In terms of; from the viewpoint of -, as far as - is concerned, according to -
Examples
日本の国土は狭そうに思われているが、数字の上で見ると、そうでもない。
It is thought, that Japans' national land seems narrow, but according to the numbers,
翻訳の上での間違いが、お互いの国の間に誤解を生んでしまった。
Asking once is shame, not asking is the entire life is shame. That is why you should rapidly be asking questions.