SiriusCon17 - A Graphical Approach to Modularization and Layering of Metamodels

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Modularity is a key aspect in software engineering since it comes with several benefits like reusability, extensibility and maintainability. Although it is a well established concept, it has not received much attention when it comes to model-driven software development. Over time, metamodels tend to evolve and grow in complexity to encompass new aspects and features. If modularization steps are not taken and metamodels are extended intrusively, they can become difficult to maintain and to extend. With the increased complexity, the modularization can become even more challenging. In this talk, we present a novel approach to assist the modeler in the task of modularization. Our approach addresses the problem from a graphical perspective. The proposed tool support displays a layered structure, where each layer has certain level of abstraction, and allows the modeler to organize metamodels inside the layers. In this layered structure, the metamodels should only depend on metamodels with the same or a higher abstraction level and should not take part in cyclical dependencies. The tool provides the modeler with full control over the modularization process and full knowledge about the relations between the metamodels, thus facilitating the modularization task greatly.

Technology

KIT – The Research University in the Helmholtz Association
SOFTWARE DESIGN AND QUALITY GROUP
INSTITUTE FOR PROGRAM STRUCTURES AND DATA ORGANIZATION, FACULTY OF INFORMATICS
www.kit.edu
A Graphical Approach to Modularization and
Layering of Metamodels
Amine Kechaou, Misha Strittmatter
November 9, 2017 – SiriusCon, Paris

Software Design and Quality Group
Institute for Program Structures and Data Organization
2 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Background
Student research assistant at the Software Design and
Quality (SDQ) research group
Areas of work
Since 2015: Graphical editors for the Palladio Component
Model (PCM)
Summer term 2017: Bachelor's thesis «A Graphical Approach
to Modularization and Layering of Metamodels»
Second time to attend SiriusCon
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
3 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Motivating example
The Palladio Component Model (PCM)
A metamodel for component-based architectures
In numbers
19 (sub-)subpackages
more than 150 EClassifiers
Conventional tooling not adapted to
modularization
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
4 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
PCM, an example of a complex metamodel
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
5 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
PCM, an example of a complex metamodel
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
6 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
09.11.2017
PCM, an example of a complex metamodel
PCMPCM-Core
PCM-Composition
PCM-Reliability
PCM-Performance
PCM-Behavior
PCM-Repository
FeedbackConcept DemoIntroduction Future work Conclusion
: Metamodel

Software Design and Quality Group
Institute for Program Structures and Data Organization
7 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Layering of metamodels
«Depend upon abstractions. Do not depend upon concretions»
- Robert C. Martin, Design Principles and Design Patterns
A Modular Reference Structure for Component-based Architecture
Description Languages [strittmatter2015]
Organize (sub-)metamodels inside layers
No dependencies to lower layers
No cyclical dependencies between modules
Benefits: reusability, understandability, maintainability
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
8 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Concept
A tool support for the modular reference structure
Graphical representation
Detection of violations (e.g. cycles)
Assistance in the task of modularization
Manipulate metamodels and assign them to layers
Load referenced metamodels automatically
Deliver information about the nature of dependencies
Use cases:
Design a modular metamodel from scratch
Modularize existing metamodels
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
9 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
LIVE
DEMO
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
10 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Support of EMF Profiles
09.11.2017
Excerpt from the PCM
pcmReliability (simplified)
ReliabilityProfile
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
11 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Support of EMF Profiles
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
12 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Future work
Usability
Inform the user about broken dependencies
Hide transitive dependencies
Choose the direction of abstraction (up/down)
…
Refactoring
Factor out the EMF Profiles part
New features
Load related metamodels
Further aspects (e.g. model transformations, VSMs)
Metamodel clustering
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
13 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Limitations and feedback
Limitations of the MRS graphical editor
Intermediate results are not saved
Redundant dependency computation and cycle detection
Improvement potential for Sirius
Run operation on refresh/modification?
Stateful Java services?
"Diagram" variables in the VSM?
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
14 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Feedback
Flexibility and fluidity
Development time
A very responsive community
Autocompletion
Casting (oclAsType)
Available variables
Diagram extension
Edge redefinition
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
15 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Conclusion
Benefits
Easier modularization
Modular metamodeling
Available at:
https://sdqweb.ipd.kit.edu/eclipse/mrs-editor/nightly/
https://github.com/kit-sdq/MRS-Editor
Feedback, suggestions, questions? amine.kechaou@student.kit.edu
09.11.2017
FeedbackConcept DemoIntroduction Future work Conclusion

Software Design and Quality Group
Institute for Program Structures and Data Organization
16 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
References
[strittmatter2015] A Modular Reference Structure for Component-based
Architecture Description Languages”. In: 2nd International Workshop on Model-
Driven Engineering for Component-Based Systems (ModComp). CEUR, 2015,
pp. 36–41. url: http://ceur-ws.org/Vol-1463/paper6.pdf
09.11.2017

Software Design and Quality Group
Institute for Program Structures and Data Organization
17 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
BACKUP
09.11.2017

Software Design and Quality Group
Institute for Program Structures and Data Organization
18 Amine Kechaou, Misha Strittmatter –
A Graphical Approach to Modularization and Layering of Metamodels
Implementation
A Sirius-based graphical editor
The MRS metamodel
defines the basis of the modular reference structure
The Viewpoint Specification Model (VSM)
Java services and external Java actions
09.11.2017

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Simulation with Python and MATLAB® in Capella

Obeo

SES ENGINEERING Studio: Achieving the perfect equilibrium between Textual Requirements and Models in Capella enhanced by Automatic Interoperability, Quality & Traceability operations The importance of models is imperative in any Systems Engineering project. However, truth is not exclusively found within models. The need to describe external contracts, regulations, or non-functional requirements, for instance, can be more efficiently satisfied by using textual specifications. In order to achieve the desired “Common Source of Truth”, model and textual requirements must be connected and coexist, desirable enhanced by the automatization of the consistency checking, automatically modifying one side when changes are produced on the other end... Within The REUSE Company, we have realised how crucial it is to facilitate this connection and provide Systems Engineers with the tools required for applying SE across the entire process as seamlessly as possible. This solution is the SES ENGINEERING Studio, and within this webinar, the following capabilities will be shown: - The SES ENGINEERING Studio offers the capability to assess consistency between textual requirements and Capella models. - Automatic generation of Capella models from Textual Requirements inside an RMS (Requirements Management System). This also involves the possibility to complete the exact opposite operation, generating textual requirements from Capella models. - Seamless traceability management between textual requirements (in any RMS) and model elements in Capella; This includes the possibility to automatically suggest traces based on the semantic content of the textual requirement. - If the preferred option is to maintain these textual requirements inside Capella, we offer the possibility to provide a round-trip process between any RMS and Requirements Viewpoint within Capella; thus, allowing that modification at either end, to be synchronized. - Automatic quality assessment of Capella models following a number of pre-established rules or allowing the users to define tailored rules. - Automatic interoperability between SysML and Arcadia models. Presented by José Pereira and José Fuentes (The Reuse Company)

Connecting Textual Requirements with Capella Models

Obeo

Beyond the no code approach, Sirius Web is an open and extensible platform that you can customize in order to support your needs. Discover how to develop specific features in Sirius Web and integrate your modeler with other web applications. Stéphane Bégaudeau, Obeo Stéphane Bégaudeau graduated from the Nantes University of Sciences and Technology and is currently working as an Eclipse Modeling consultant at Obeo in France.

Sirius Web Advanced : Customize and Extend the Platform

Obeo

Learn step-by-step how to create a domain model and define your first diagrams with Sirius Web, without any line of code. It will allow you to easily create custom graphical representations that automatically represent your data in the web. Frédéric Madiot, Obeo Frédéric Madiot is Marketing Manager at Obeo. He has more than 25 years of experience in developing model-driven tools to industrialize the development of new applications and the modernization of existing systems.

Sirius Web 101 : Create a Modeler With No Code

Obeo

What's new in Sirius Web ? Discover the current version and what will come in the next releases. Mélanie Bats, Obeo Mélanie Bats works as CTO at Obeo. In my daily work, I am mainly focused on managing the R&D team, creating products based on our own open source technologies. I am used to work in the development of modeling tools with Sirius like UML Designer. I am committer for the EEF and the Sirius projects. I am also involved in the Eclipse community as being the Eclipse Planning Council chair. I am also a free software activist who has organized and participated in free software events in the Toulouse area.

Sirius Project, Now and In the Future

Obeo

Visualizing, Analyzing and Optimizing Automotive Architecture Models using Sirius Advancing digitalization affects almost all aspects of our modern world. A prominent example is that of modern automobiles. From primarily mechanical machines, cars have evolved into driving complex cyber-physical systems over the last decades. Optimizing such systems consisting of vast networks of sensors, actuators, control units, and communication systems is a huge challenge for today's automotive industry and requires standardized and integrated toolchains fit for purpose. Together with a prestigious automotive industry partner, the Technical University of Ilmenau developed an application together with an integrated toolchain for evaluating and optimizing automotive architecture models. This application is based on the Obeo Sirius project as well as the Eclipse Modeling Framework. Based on Sirius, we created a model editor which is used for visualizing, editing, but also analyzing and optimizing automotive models across the boundaries of different architectural layers. Maximilian Hammer, Technical University of Ilmenau Maximilian Hammer is a Research Assistant at Technical University of Ilmenau

Visualizing, Analyzing and Optimizing Automotive Architecture Models using Si...

Obeo

The openCAESAR project provides an EMF-based implementation of the Ontological Modeling Language (OML), which simplifies the use of semantic web ontologies for modeling and analysis. An OML model can be either be a vocabulary model that defines the terms and rules in a business domain with precise syntax and logical semantics, or can be a description model that uses that vocabulary to describe knowledge. OML has successfully been used at the Jet Propulsion Laboratory (JPL) in the context of Model Based Systems Engineering (MBSE), specifically to define the JPL systems engineering methodology in a highly modular and extensible way. Sirius has been used to define the authoring viewpoints that support such methodology. In this talk, we present how OML and Sirius can be used together, through the OML Rosetta Workbench, to streamline the development of an ontology-based modeling methodology and the authoring tools for it. The ideas will be demonstrated on a small example. Maged Elaasar, NASA - Jet Propulsion Laboratory Maged Elaasar is a Senior Software Systems Architect at NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology (Caltech). He technically leads a JPL-wide strategic R&D program called Integrated Model Centric Engineering (IMCE). Prior to that, Maged was a Senior Software Engineer at IBM, where he led the R&D of various software and systems modeling technologies. Maged is also the founder of Modelware Solutions, a company based in California that provides development, consulting, and training services in the area of model based engineering (MBE)

Defining Viewpoints for Ontology-Based DSLs

Obeo

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