The research reviews the logical approach based on the creative thoughts. The two logical approaches, including deductive convergent and inductive divergent are discussed with why-why techniques and how-how techniques. While the deductive thinking is vertical logic for interconnected hierarchical and deep domains, the inducive thinking is horizontal logic for mutually exclusive and collectively exhausted frameworks. The creative thinking comes from the reversing the logic and lessening the premise of convergent and divergent approaches.

Abstract
 1. 서론
 2. 창의적 사고방법의 유형
  2.1 수렴적 접근 방법
  2.2 발산적 접근 방법
  2.3 창의적 접근 방법
 3. Why-Why 방법과 How-How 방법
  3.1 Why-Why 방법
  3.2 How-How 방법
 4. 결론
 5. 참고문헌

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