Caban A, Cimino C, Swencionis C, Ginsberg M, Wylie-Rosett J
Albert Einstein College of Medicine, New York, NY, USA.
J Am Med Inform Assoc. 2001 Mar-Apr;8(2):185-8. doi: 10.1136/jamia.1997.0040025.
The authors compare alternative methods of cost estimation for a patient multimedia education (PME) program, using a computerized weight-reduction PME project as an example. Data from the project planning and budgeting process and actual costs of the completed project are analyzed retrospectively to calculate three different estimates-pre-work, post-work, and actual work. Three traditional methods of estimating the cost of computer programs (the lines-of-code, function point, and task ratio analyses) underestimate costs in this example. A commercial program (Cost Xpert) that calculates the cost of developing a graphical user interface provided a better estimate, as did a tally reflecting the complexity and quality of media material in the project.
作者以一个计算机化的减肥患者多媒体教育（PME）项目为例，比较了患者多媒体教育（PME）项目成本估算的替代方法。回顾性分析该项目规划和预算过程中的数据以及已完成项目的实际成本，以计算三种不同的估算值——工作前、工作后和实际工作成本。在这个例子中，三种传统的计算机程序成本估算方法（代码行、功能点和任务比率分析）都低估了成本。一个计算开发图形用户界面成本的商业程序（Cost Xpert）提供了更好的估算，反映项目中媒体材料复杂性和质量的统计也提供了较好估算。
