The aim of this study is about holistic and analytic scoring process of raters, the use of the writing assessment criteria and the rater`s discussion process. The raters express cognitive activities of writing assessment with the think aloud method and the writing comment. And this study explores the features of the process of the rater`s discussion on the two groups with the discourse analysis method. This study specifically analyzes the process of using the writing assessment criteria and the rater`s discussion by simple regression analysis. The result of this study shows the differences of the scoring groups on the scoring and the use of writing assessment criteria. The result of analysis about the process of the rater`s discussion shows the importances of the balance between the agreement and the disagreement. Therefore considering of cognitive scoring activities of raters and using the writing assessment criteria makes an important contribution to raising the quality of writing assessment. And consideration of the rater`s discussion makes an important contribution to raising the quality of (pre)teacher writing assessment education.