ISO/IEC 14143第4部分定义了验证功能尺寸时使用的参考模型（图0.1） 测量（FSM）方法。 参考模型由两部分组成: -参考用户需求（RUR）的分类框架，可使用FSM确定大小 方法包括此类RUR的示例，以及用户手册的进一步出版物参考 可用于RUR的要求（UR），以及 -关于选择参考FSM方法的指南，可与FSM方法进行比较。 参考模型是FSM方法评估过程的输入。制定和执行 评估测试及其结果的解释不在本技术报告的范围内。 本技术报告中包含的RUR和其他参考文献仅代表某些领域的UR示例 领域和情况。附件A、B或C未涵盖的领域和情况的额外RUR和RUR可能 在本技术报告所述框架的帮助下生成。 参考FSM方法的要求可能有助于选择参考FSM方法。

Part 4 of ISO/IEC 14143 defines the reference model (Figure 0.1) to be used when verifying a Functional Size Measurement (FSM) method. The reference model consists of two components: - a classification framework of Reference User Requirements (RUR) which can be sized using an FSM Method. Included are examples of such RUR as well as references to further publications of User Requirements (UR) which can be used for RUR, and - guidance on selecting Reference FSM Methods, against which an FSM Method can be compared. The reference model is an input to the evaluation process of an FSM Method. The formulation and execution of evaluation tests and the interpretation of their results is outside the scope of this Technical Report. The RUR and additional references contained in this Technical Report only represent examples of UR in some domains and situations. Additional RUR and RUR for domains and situations not covered by Annex A, B, or C may be generated with the assistance of the framework described in this Technical Report. The requirements for Reference FSM Methods may assist in selecting Reference FSM Methods.