A. Abdollahi’s scientific contributions

Error is an inevitable part of life and cannot be completely eliminated, but it can be minimized. A root cause analysis is a technique for understanding the systematic error causes that is involved beyond a person or people to implement an errors and including field and environmental causes of errors when occur in this situation too. An important factor of an error occurrence is a root cause (causes) in causal factors that its revision or removing caused to prevent the recursion of a situation such as an error when is occurring in a process. The process of root cause analysis is consist of six steps: the beginning of the process, Data collection and mapping information, Identifying the problems, Analyzing Information, Solution Providing, Implementing the solutions (action plans),Writing the report.