关键词: 数字保存, 　成本核算, 　模型

Abstract:

This paper reviews the research progress of digital preservation cost models in Europe and America, and typically analyzes the NASA-CET, LIFE and KRDS models focusing on their structures and costing tools. Finally, the author sums up the deficiencies of the existing digital preservation cost models, and puts forward its future prospects trends.

Key words: Digital preservation, 　Cost accounting, 　Model