本文件规定了一种预测和量化儿童约束系统（CRS）滥用的方法，称为滥用模式和影响分析（MMEA）。这种误用会降低CRS的性能。 作为一种预测方法，CRS制造商打算在消费者使用CRS之前的早期阶段应用该方法。 预测意味着不完整和错误的可能性。如果建议的方法得到现场研究（例如，根据ISO？13215-1）和小组方法评估（例如，按照ISO？13215-2）的支持，则可以减少此类误差。

This document specifies a method to predict and quantify misuse of child restraint systems (CRS) called Misuse Mode and Effect Analysis (MMEA). Such misuse can degrade the performance of CRSs. As a predictive method it is intended to be applied by CRS manufacturers at an early stage, before the CRS is put into use by consumers. Being predictive implies the possibility of incompleteness and errors. Such errors can be reduced if the proposed method is supported by field studies (for example, according to ISO？13215-1) and panel method evaluation (for example, according to ISO？13215-2).