Okay, the user wants me to translate "human factors" into Japanese. Let me think about the correct term here. "Human factors" is often translated as "人的要因" in Japanese, which refers to factors related to human elements in systems or processes. I should make sure there's no alternative translation that's more appropriate in this context. Since the user specified to translate into Japanese and provide only the result, I'll just output "人的要因" without any explanations.