What language is the Hangul script based on?

Structural innovation and design principles

One of the key attributes that set Hangul apart from other writing systems is its structural innovation and design principles. Hangul is often characterized as a featural alphabet, which implies its characters express the sound (phoneme) they represent in a systematic and logical manner. This was devised with the aim to make the script simple and easier to learn compared to the complicated Chinese characters used previously.