ISO 14649-10:20 04规定了数控加工通常需要的工艺数据，因此对于几种加工技术来说是通用的。这些数据元素描述了编程系统（即CAM系统或车间编程系统）和计算机化数字控制器之间的接口。数字控制器的程序包括几何和技术信息。它可以使用ISO 14649-10:20 04以及特定于技术的部分（ISO 14649-11、ISO 14649-12等）来描述。ISO 14649-10:20 04提供了程序执行顺序的控制结构，主要是工作步骤和相关机器功能的顺序。 ISO 14649-10:20 04中定义的“machining_schema”包含通常与不同技术(例如。g.铣削、车削、磨削）。它包括: 通用可执行文件，包括工作计划、工作步骤和NC函数；工件的定义；包含可能被几种技术引用的特征的特征目录；操作定义的基础。 此架构中不包括以下内容: 几何项目；表示，从ISO 10303的通用资源中引用；特定于技术的定义，在ISO 14649的单独部分中定义。 ISO 14649-10:20 04不能孤立存在。此外，实施还需要至少一个特定于技术的零件（例如，用于铣削的ISO 14649-11，用于车削的ISO 14649-12）。 此外，该模式使用类似于ISO 10303-224和ISO 10303-214的加工特征。使用ISO 10303-11中定义的EXPRESS语言描述工艺数据。使用ISO 10303-21对数据进行编码。

ISO 14649-10:2004 specifies the process data which is generally needed for NC-machining and therefore common to several machining technologies. These data elements describe the interface between the programming system (i.e. CAM system or shop-floor programming system) and a computerized numerical controller. The programme for the numerical controller includes geometric and technological information. It can be described using ISO 14649-10:2004 together with the technology-specific parts (ISO 14649-11, ISO 14649-12, etc.). ISO 14649-10:2004 provides the control structures for the sequence of programme execution, mainly the sequence of working steps and associated machine functions. The "machining_schema" defined in ISO 14649-10:2004 contains the definition of data types which are generally relevant for different technologies (e.g. milling, turning, grinding). It includes:

• the general executables, including workplan, workingsteps and NC-functions;
• the definition of the workpiece;
• a feature catalogue containing features which might be referenced by several technologies;
• the basis for an operation definition.

Not included in this schema are the following:

• geometric items;
• representations, which are referenced from ISO 10303's generic resources;
• the technology-specific definitions, which are defined in separate parts of ISO 14649.

ISO 14649-10:2004 cannot stand alone. An implementation needs in addition at least one technology-specific part (e.g. ISO 14649-11 for milling, ISO 14649-12 for turning). Additionally, the schema uses machining features similar to ISO 10303-224 and ISO 10303-214. The description of process data is done using the EXPRESS language as defined in ISO 10303-11. The encoding of the data is done using ISO 10303-21.