expression, adverb
Standard interrogative adverb asking about manner or method. Used in both formal and informal contexts.
See also: どの様 (どのよう)
この機械はどのように動かしますか。
How do you operate this machine?
どのようにして日本語を勉強しましたか。
How did you study Japanese?
More casual and common in speech; どのように is more formal and explicit.
Focuses on the means or method; どのように can also ask about state or condition.
Compound of どの (interrogative prenominal) + ように (adverbial form of ようだ, 'like, in the manner of').