In both his book and blog, Leffingwell has developed a set of models and meta-models to assist developers in the application of Lean and Agile practices to large scale projects.
为了帮助开发人员将精益和敏捷实践应用到大型项目之中，在自己的书和博客上，Leffingwell已经研究出了一系列模型和元模型。
Strictly speaking, XMI functions to serialize mappings from Object Management Group (OMG) Meta Object Facility (MOF) models to a variety of loaders, savers, and schemas.
严格的讲，XMI对从“对象管理集团 （OMG）元对象设施（MOF）”模型到大量的装入器、保存器以及模式的映射进行序列化。
Components have to specify all their architecturally relevant properties declaratively (aka in meta data, or models).
组件必须以声明方式指定它们与架构相关的属性(即以元数据或模型的方式指定)。
Figure 6: Reverse engineered meta-model for entity relationship models.
图6：实体关系模型的反向工程元模型。
In fact the description above is a meta-model to help define more specific implementation models that are of practical use.
实际上，上述的描述是一种元模型，可用来帮助定义具有实际使用意义的更为具体的实现模型。
The using and management of models is very important in the Meta synthesis Decision Simulation System.
在综合集成决策模拟系统中，模型的使用与管理占据着不可忽视的地位。
Yet knowledge management mechanisms can not be represented by current workflow process definition meta models.
当前的工作流过程元模型不支持对知识管理机制的表示。
Through the hierarchical research of workflow process model, it is put forward three levels of workflow process models: meta model level, model level and control model level.
对工作流过程模型进行分层研究，提出了三层架构的工作流过程模型：元模型层、模型层和控制模型层。
The result is that there are many versions of data models referring to the same thing within an organization, and each data source has its own data model and meta-model.
结果是，许多版本的数据模型引用了组织内的同一个事物，且每个数据源都有自己的数据模型和元模型。
This approach can be used even when the HLDM is a meta-model and implementation models are concrete, or vice-versa.
甚至当HLDM作为元模型并且实现模型是具体的时候该方法也可以使用，反之亦然。
This approach can be used even when the HLDM is a meta-model and implementation models are concrete, or vice-versa.
甚至当HLDM作为元模型并且实现模型是具体的时候该方法也可以使用，反之亦然。
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