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Umple Modelling Language

Build Status

OS Linux OSX Windows
Status Travis-CI Build Status Travis-CI Build Status Windows Build status


This is the main project for various Umple subprojects and components.

Umple is a model-oriented programming technology, allowing developers to embed modelling concepts (e.g. UML associations, state machines), patterns, generation templates, and other abstractions in traditional code, and vice versa. It generates high quality code for Java, C++ and PhP, as well as diagrams, metrics and many other artifacts. It can be embeded in the above languages as well as embed them.

The project homepage is located at


Umple is developed in itself, guaranteeing robustness; the most recent version of the compiler must be used to compile itself. See the wiki for development setup.

Development follows a model-driven, test-driven, agile, continuous-integration process. Umple is hosted currently on Github at It was first released in 2007, and the master was on Google Code from 2011 to mid 2015.

Umple has been largely developed as a research project at the University of Ottawa, Canada, by numerous PhD and masters students: many undergraduates from across Canada and the USA have also contributed through the UCOSP program. See the license file for the list of contributors.

More details can be found as follows

Umple is continuously tested and built at the University of Ottawa using CruiseControl; see . It is also built on Travis CI ( and Appveyor (

Project setup

The umple project is split into many smaller subprojects; the folder hierarchy is explained below to better describe the structure.

  • build/

    • Ant build scripts and related information including user manual raw data
  • cruise.umple/ Umple compiler

    • See its own ReadMe.txt for further details
    • See also UmpleTo* below for additional compiler components
  • cruise.umple.eclipse/, cruise.umple.xtext.ui/ Eclipse plugins

  • cruise.umplificator Converting outside code to Umple

    • cruise.umple.validator Validates umple when umplifying
  • cruise.umple.nebula Infrastructure used for real-time C++

  • dev-tools Tooling for Umple developers

  • dist Build produced items, only available after building

    • libs/ Managed build dependencies that umple.jar require to run*
    • cruise.umple/reference User manual
    • qa/ Test reports
    • umple.jar and umple.VERSION.jar Current command-line Compiler
    • umpledocs.VERSION.jar User manual generator
    • umplestats.VERSION.jar Statistics generation
    • umplesync.VERSION.jar UmpleOnline tool to to synchronize graphical form
    • umplerun.VERSION.jar tool to drive input to an umple program
    • vml.VERSION.jar * Extension for variability modeling*
  • examples/ Developer curated examples

  • externalexamples/ External projects that are used for testing

  • ExternalTextEditorPlugins Plugins for external editors, Notepad++, etc

  • sandbox Small test done before a build to make sure testing and compiling works

  • testbed/, testbed_php/, testbed_ruby/ Test suites for Java, Php and Ruby respectively

  • UmpleToJava/ Code generation for Java

  • UmpleToPhp/ Code generation for Php

  • UmpleToRuby/ Code generation for Ruby

  • UmpleToRTCpp/ *Code generation for C++ *

  • UmpleToSDL/ Code generation to convert Umple to SDL (in early development)

  • UmpleToSql/ Code generation SQL from Umple models

  • UmpleToTemplate/ Location for templates that could be common to subprojects

  • umpleonline/ The UmpleOnline web application

    • UmpleOnline allows generation of code from Umple directly in a web browser, and also editing of Umple both graphically and textually. Available at
  • Umplificator/ Reverse engineer code to Umple

  • umplificatoronline/ Online tool for converting code to Umple

  • umpleUI/ Projects for the UIGU tooling

    • Projects for generating a UI through UIGU from Umple. These need work to incorporate them into UmpleOnline
  • umplewww/ Core files from the web pages

    • Includes items such as the user manual that are moved at build time into the appropriate place