#SiriusCon - Constraint Graph: Graphical Modeling of Physical Equation Systems

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This document discusses a presentation about Constraint Graph, a modeling tool for physical equation systems developed by ETAS GmbH using the Sirius and XText modeling frameworks. The presentation covers an introduction to Constraint Graph and the developers, a demonstration of the tool, the reasons for selecting Sirius, exploring the capabilities and limits of Sirius, considerations for tool vendors, and a summary of Constraint Graph and the outlook.

Software

1 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
Constraint Graph
Graphical Modeling of Physical Equation Systems

2 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
Constraint Graph
Graphical Modeling of Physical Equation Systems
Agenda/Content
1 About the protagonists
2 A demo says more than 1000 words
3 Exploring Sirius
4 Some things to think about
5 Summary and Outlook

3 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Passionate Software Engineer
− With Bosch since 2003, ETAS since 2011
− Developing Eclipse IDE based tools since 2007
− Passions:
− Agile Software Development Technologies
− Open Source Development
− Release Management
Who is Lars Geyer-Blaumeiser?
Constraint Graph
Graphical Modeling of Physical Equation Systems

4 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− 200 M€ revenue company
− 700+ employees distributed world wide
− 100% owned by Robert Bosch GmbH
− ETAS Drives Embedded Excellence with
− Tools
− Consulting
− Embedded Software
− Application Area Software Engineering
− Eclipse based Tooling
− Ascet 7
− ISOLAR-Suite
− New Tool: Constraint Graph
ETAS GmbH
Constraint Graph
Graphical Modeling of Physical Equation Systems

5 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
The Constraint Graph Tool
Constraint Graph
Graphical Modeling of Physical Equation Systems
Live
Demo

6 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Problem class suitable for standard graphical editing framework
− Fast innovation vs. limited resources
− Concentration on business logic and methodology
− Easy know how buy in, if needed
− Expectation: Technology follow-up is faster with standard framework
Selecting Sirius
Constraint Graph
Graphical Modeling of Physical Equation Systems

7 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Solving these issues without Obeo knowledge very hard
Exploring Borders
Constraint Graph
Graphical Modeling of Physical Equation Systems

8 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Customer prefer resource based approach because of
− Better control of changes, e.g., usage of standard tooling (Beyond Cmp)
− Better integration into processing like build tools
Serialization does matter
Constraint Graph
Graphical Modeling of Physical Equation Systems
Model based editing Resource based editing
Project corresponds to model Edit each resource on its own
Explore the model Explore the file system
Dirty handling based on model Resources get dirty
Do not care about serialization My file is my castle
Use high level abstractions for
change management
Being able to use standard SCM
mechanism for change mgmt.
XML as a preferred technology DSL as a preferred technology

9 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Advantages
− Fast full workflow support
− Best of both worlds
− Simple text based tooling
− Standard tool support
− Challenges
− Synchronous editing
− Shared problem marker
− XText field editor
− One editor with tabs
Sirius and Xtext
Constraint Graph
Graphical Modeling of Physical Equation Systems
Syq
Gram-
mar
Syq Model
XText
Parser &
Serializer
XText
Validation &
Generation
Generates
Uses

10 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Requirement: Run your tool in customer developed IDEs
− Selected range of eclipse releases
− Reference: Eclipse Automotive IDE Distribution
− Several providers of components with different version requirements
− Required: Fault tolerant behavior concerning unexpected versions of dependencies
(aka. upward compatibility)
− Expectation towards component provider
− Find a good compromise between innovation and compatibility
− Conservative version development
− No artificial incompatibilities between versions
Sirius for Eclipse Tool Vendors
Constraint Graph
Graphical Modeling of Physical Equation Systems

11 External | Lars Geyer-Blaumeiser (ETAS) | 2015-12-03 | © ETAS GmbH 2015. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
− Constraint Graph: A modeling environment for physical equation systems
− Based on a combination of XText and Sirius
− Sirius: Efficiency for graphical editors with standard behavior
− Some mismatches and pitfalls that make life more difficult
− We would decide the same way today
− We expect also other new ETAS tools to use Sirius when appropriate
Summary and Outlook
Constraint Graph
Graphical Modeling of Physical Equation Systems

Capella is a Model Based Systems Engineering (MBSE) solution using Sirius for its diagrams rendering. It has been initially developed in house by Thales and has been open sourced (in Polarsys) within the context of the CLARITY project. This was actually the very first step of CLARITY, which aims at developing and structuring an international ecosystem around Capella. The CLARITY project now investigates customization capabilities for Capella and aims at complementing the ecosystem with a community that brings together major actors of the entire engineering value chain (industrials, integrators, technology providers and consultants, academia) for open innovation in MBSE within Capella. In this context, Areva and Airbus Defence & Space already made lots of experimentations and are helping the ecosystem to mature up by providing feedbacks to the community. In this talk, you will get an overview of what those 2 Industrial companies have realized so far. [About Christophe Boudjennah: Christophe is a senior system/software architect and project manager. His experience leads him to work for various domains such as defense, IT, or the Automotive industry. Most of his career has been focused on Systems Engineering for complex embedded systems, whether it is from the "methods and tools provider" point of view or from the operational one. He is now working for Obeo, and is dealing with various open source and systems engineering related topics. One of his current main responsibilities is to be the project coordinator of Clarity, a large R&D project whose purpose is to open-source Capella (an industrial workbench for system engineering).]

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