What is another word for notational system?
Pronunciation: [nə͡ʊtˈe͡ɪʃənə͡l sˈɪstəm] (IPA) 
A notational system is a set of symbols or codes used to represent ideas or information. However, there are several synonyms that can be used interchangeably with this term. These include writing system, symbolic language, notation, and sign system. Each of these synonyms refers to a method of communication that uses symbols and codes to convey meaning or information. A writing system may include alphabets, characters, and symbols, whereas a symbolic language may use imagery and metaphor to represent ideas. Notation refers specifically to the use of musical notation, while a sign system may include hand signals or gestures. Whatever the type of notational system, each serves the purpose of conveying complex ideas in a concise and understandable way.
