□ Data
○ List of pure numbers and characters before processing.
○ Material of information
□ Information
○ Processed data, with specific meanings.
○ Data + Meaning
□ Knowledge
○ Valuable information.
○ Data + Meaning + Value
□ Wisdom
○ Knowledge of universal principles.
○ It can be applied to other industries and academic fields.
○ Data + Meaning + Value + Principle
※ Even the same data is recognized differently depending on the situation. Physics can be "knowledge" for physics students and Physics can be "data" for pianists. But if the pianist develops a new method of playing piano using physics, then physics can be "wisdom".