---
title: "Annex A — Changes from v1.2"
chapter: "Annex A — Changes from v1.2"
source: "OMG BPMN 2.0.2 — formal/2013-12-09"
pages: "479"
---

> Annex A — Changes from v1.2 · páginas 479 · [índice](README.md)


<a id="annex-a"></a>
# Annex A — Changes from v1.2


<a id="sec-A-1"></a>
## A.1 Changes from BPMN, v1.2


There have been notational and technical changes to the BPMN International Standard. The major notational changes include:


  - The addition of a Choreography diagram

  - The addition of a Conversation diagram

  - Non-interrupting Events for a Process

  - Event Sub-Processes for a Process


The major technical changes include:


  - A formal metamodel as shown through the class diagram figures

  - Interchange formats for abstract syntax model interchange in both XMI and XSD

  - Interchange formats for diagram interchange in both XMI and XSD

  - XSLT transformations between the XMI and XSD formats


Other technical changes include:


  - Reference Tasks are removed. These provided reusability within a single diagram, as compared to GlobalTasks, which are resuable across multiple diagrams. GlobalTasks can be used instead of Reference Tasks, to simplify the language and implementations.