Hoover L W
J Am Diet Assoc. 1983 May;82(5):501-5.
Food composition tables now being compiled include a wide range of food items and nutrients. This trend is paralleled in the development of computer-stored nutrient data bases that are being utilized for numerous applications, such as cost-optimized menu planning, dietary record analysis, and nutritional assessment. In 1976, several participants at the National Nutrient Data Bank Conference agreed to cooperate in a comparative study to analyze a common one-day dietary record. The results of three subsequent analyses indicated that the values for nutrients varied considerably even after elimination of coding judgments relative to portion size and selection of food items. The results of the study indicated the need for an assessment methodology suitable for evaluating performance of a computerized nutrient analysis system.
目前正在编纂的食物成分表涵盖了广泛的食物种类和营养素。计算机存储的营养数据库的发展也呈现出类似趋势，这些数据库正被用于众多应用，如成本优化的菜单规划、饮食记录分析和营养评估。1976年，全国营养数据库会议的几位参与者同意合作进行一项比较研究，以分析一份常见的一日饮食记录。随后三次分析的结果表明，即使在消除了与食物份量和食物选择相关的编码判断后，营养素的值仍有很大差异。该研究结果表明需要一种适合评估计算机化营养分析系统性能的评估方法。
