ISO 14954:2005规范了航天器承包商（SCC）和发射服务提供商（LSP）之间的数学模型交换。它确定了模拟运载火箭（LV）和航天器（SC）动态行为的标准方法，尤其是在发射前和发射阶段早期耦合时。 在标准模式下，交付的模型代表发射器界面的动态和静态行为。ISO 14954:2005中规定的要求是动态耦合分析的最低要求。它们可能不足以进行应力分析。 ISO 14954:2005不包括航天器模型的验证。

ISO 14954:2005 normalizes the exchange of mathematical models between spacecraft contractors (SCC) and launch service providers (LSP). It identifies standard methods for modelling the dynamic behaviour of both launch vehicles (LV) and spacecraft (SC) particularly when they are coupled prior to launch and during the early moments of the launch phase. In standard mode, the delivered models represent dynamic and static behaviour at the launcher interface. The requirements provided in ISO 14954:2005 are the minimum necessary for dynamic coupled analysis. They may be not sufficient for stress analysis. ISO 14954:2005 does not include the validation of spacecraft models.