# ISO/IEC 15909-1:2004 — Withdrawn and superseded ISO standards For ISO/IEC 15909-1:2004, item title is Systems and software engineering — High-level Petri nets — Part 1: Concepts, definitions and graphical notation; status code is 9599; successor is ISO/IEC CD 15909-1 | ISO/IEC 15909-1:2019; withdrawn / published date is 2004-12-02, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 15909-1:2004 _(verified: appears in the quote below)_ - **Item title:** Systems and software engineering — High-level Petri nets — Part 1: Concepts, definitions and graphical notation _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC CD 15909-1 | ISO/IEC 15909-1:2019 - **Withdrawn / published date:** 2004-12-02 _(verified: appears in the quote below)_ ## What the source says > 38225,IS,,ISO/IEC 15909-1:2004,"Systems and software engineering — High-level Petri nets — Part 1: Concepts, definitions and graphical notation","Ingénierie des systèmes et du logiciel — Réseaux de Petri de haut niveau — Partie 1: Concepts, définitions et notation graphique",2004-12-02,1,['35.080'],ISO/IEC JTC 1/SC 7,9599,,"[61001,67235]",['en'],38,"

ISO/IEC 15909-1:2004 defines a semi-graphical modelling language for the specification, design and analysis of discrete event systems, including software and in particular distributed and parallel systems where concurrency is an important characteristic. The technique, High-level Petri Nets, is mathematically defined and may thus be used to pr ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).