本标准定义了专门的操作模式“OP Atom”或OP Atom，用于存储和交换MXF文件，该文件具有一个由单个Essential Track描述的单个Essential项的严格定义结构。它定义了适用于MXF文件格式规范的操作限制、结构元数据对象和单个属性，以在交换单个视听材料时实现互操作性。操作模式“OP Atom”旨在满足应用程序的需求，这些应用程序需要在一个文件中以开放和标准化的格式交换材料和相关元数据，但也需要一个简单、可预测、具有最小变化范围的布局。 OP Atom专门用于每个Essence曲目都单独保存的应用。操作模式“OP Atom”提供了MXF功能的子集。

This standard defines the specialized Operational Pattern "OP-Atom" or OP-Atom for the storage and exchange of an MXF file with a tightly defined structure for a single item of essence described by a single Essence Track. It defines the operating restrictions, Structural Metadata objects and individual attributes applied to the MXF file format specification to achieve interoperability when exchanging a single item of audio-visual material.Operational Pattern "OP-Atom" is intended to satisfy the demands of applications where there is a requirement for exchange of material and associated metadata together in a single file with an open and standardized format, yet also a demand for a simple, predictable, layout with minimum scope for variation. OP-Atom is specifically intended for applications where each Essence Track is held separately. Operational Pattern "OP-Atom" provides for a subset of MXF features.