An important problem in process adjustment using feedback is how often to sample the process and when to apply an adjustment. Schemes designed to minimize the overall cost. The cost taken the frequency with which they require observations to be made, and the resulting overall length of time between adjustment. In this article, the process adjustment which is based on the adaptive EWMA forecasts are derived. An example is presented to improve confirm standard varation through the analysis of a data series.

Abstract
 1. 서론
 2. 단반응 피드백 공정조정
  2.1 용어 설명
  2.2 피드백 시스템
  2.3 EWMA 피드백 조정
 3. 제한적 피드백 시스템
 4. 적응적 피드백 시스템
 5. 적용사례
 6. 결론
 참고문헌

• 고용해
• 이성철
• 전상표