本文件定义了Petri网的丰富、扩展和结构机制，适用于ISO/IEC？15909-1中提出的定义。本文件有助于定义新类型的Petri网及其互操作性，同时与ISO/IEC 15909-1中定义的Petri网保持兼容。 本文通过定义常见的充实、扩展和结构机制，以及定义新的Petri网变体的通用过程，作为新Petri网变体设计者的参考。 本文件适用于各种并发离散事件系统，尤其是分布式系统。通用应用领域包括: -？需求分析； -？规范、设计和测试套件的开发； -？重新设计之前对现有系统的描述； -？对业务和软件流程进行建模； -？为并发语言提供语义； -？模拟系统以增加信心； -？系统行为的正式分析； -？以及Petri网支持工具的开发。 本文件可应用于多种系统和流程的设计，包括航空航天、空中交通管制、航空电子、银行、生物和化学流程、业务流程、通信协议、计算机硬件架构、控制系统、数据库、国防指挥和控制系统、分布式计算、电子商务、容错系统、游戏、，医院程序、信息系统、互联网协议和应用、法律程序、物流、制造系统、代谢过程、音乐、核能系统、操作系统、运输系统（包括铁路控制）、安全系统、电信和工作流程。

This document defines enrichments, extensions and structuring mechanisms of Petri nets, applied on the definitions proposed in ISO/IEC 15909-1. This document facilitates the definitions of new kinds of Petri nets and their interoperability, while remaining compatible with those defined in ISO/IEC 15909-1. This document is written as a reference for designers of new Petri net variants, by defining common enrichments, extensions and structuring mechanisms, as well as a generalized process for defining new ones. This document is applicable to a wide variety of concurrent discrete event systems and in particular distributed systems. Generic fields of application include: —    requirements analysis; —    development of specifications, designs and test suites; —    descriptions of existing systems prior to re-engineering; —    modelling business and software processes; —    providing the semantics for concurrent languages; —    simulation of systems to increase confidence; —    formal analysis of the behaviour of systems; —    and development of Petri net support tools. This document can be applied to the design of a broad range of systems and processes, including aerospace, air traffic control, avionics, banking, biological and chemical processes, business processes, communication protocols, computer hardware architectures, control systems, databases, defence command and control systems, distributed computing, electronic commerce, fault-tolerant systems, games, hospital procedures, information systems, Internet protocols and applications, legal processes, logistics, manufacturing systems, metabolic processes, music, nuclear power systems, operating systems, transport systems (including railway control), security systems, telecommunications and workflow.