Limited human attention resources produce cognitive load and so critical human error. In particular, the case of large-scale systems due to human error from the limited attention resources had often very large accidental damage. Recent disaster of Fukushima Daiichi nuclear power plant is a typical example. Display design method to reduce the cognitive load has been studied in the area of Ecological Interface Design (EID). EID method proposed Work Domain Analysis (WDA) for understanding work domain constraints. Using WDA method, it analyzed Steam Generator and Pressurizer Water Level control process design of digitalized Main Control Room.

1. Introduction
 2. Method
 3. Results
  3.1 Define the system
  3.2. Abstraction Hierarchy
  3.3 Task Anaysis & Information Requirement
  3.4 Interface Design
 4. Conclusion
 Reference

• 나두완(국립금오공과대학교 산업공학과) | Doo Wan Ra
• 차우창(국립금오공과대학교 산업공학과) | Woo Chang Cha 교신저자