The document presents the Eclipse MoDisco framework for model-driven reverse engineering, which supports multiple scenarios and technologies for analyzing and transforming legacy software artifacts. It details the architecture of MoDisco, including components for Java, JEE, and XML, and highlights features such as a customizable model browser and a workflow manager for reverse engineering processes. The project is open-source and adheres to several OMG architecture-driven modernization standards.

1. Introducing
Eclipse MoDisco
(Model Driven) Reverse Engineering
Hugo Bruneliere
AtlanMod Team (Inria, Mines Nantes & LINA)
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2. Different Possible
Reverse Engineering Scenarios
Support for multiple
scenarios/results
Support for multiple
legacy technologies
Transformations
•Documentation
•Impact analysis
Configuration
files
Other sources
Models of the
system(s)
Generators
Databases
Discoverers
Source code
MoDisco
•Models
•Viewpoints
•Upgrade
•Migration
•Metrics
•Quality Assurance
Eclipse Modeling
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3. Model Driven Reverse Engineering
(MDRE) Approach
 Use models to represent and manipulate
artifacts from existing systems
Existing
Legacy System
Software artifacts :
- source code
- configuration files
- tests
- database
-…
Discover
Models
Understand
Viewpoints
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Transform
New
Software Artifacts
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4. Model Driven Reverse Engineering
(MDRE) Approach
 Discover
Java metamodel
MoDisco
Java
Discoverer
Java source code
conforms to
Java model
JUnit3
JUnit3 code
 Navigate
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MoDisco
Model Browser
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5. Model Driven Reverse Engineering
(MDRE) Approach
 Understand
Java model
JUnit3
Java
JUnit3
Customization
MoDisco
ModelBrowser
Facets
Models uses
 Extract
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JUnit3
Queries
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6. Model Driven Reverse Engineering
(MDRE) Approach
 Transform
JUnit3 to JUnit4
M2M Transformation
Java model
JUnit3
Java model
JUnit4
JUnit3
Facets
 Regenerate
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Java source code
JUnit4 code
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7. Eclipse MoDisco
An Eclipse framework to support
the elaboration of
Model Driven Reverse Engineering
solutions
 Official Eclipse Modeling project
 Open-source (EPL)
 Based on other Eclipse Modeling projects
 Released with Helios, Indigo, Juno, Kepler, …
 Supported by the OMG
 Reference implementations for several ADM
(Architecture Driven Modernization) standards:
 KDM (Knowledge Discovery Metamodel)
 SMM (Structured Metrics Metamodel)
 ASTM (Abstract Syntax Tree Metamodel)
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8. MoDisco: Global Architecture
Java
JSP
XML
Metamodel
Discoverer
Generator
Transfo. to KDM/UML
Metamodel
Discoverer
Generator
…
Metamodel
Discoverer
Generator
MoDisco – “Technologies” layer
Discovery
Manager, Workflow
Plug and orchestrate
transformations
Model
Browser
Navigation through
complex models
Querying
& Customization
Definition of
specific viewpoints
OMG/ADM
Standards
Pivot metamodels
(KDM, ASTM, SMM)
MoDisco – “Infrastructure” layer
Eclipse Modeling projects
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9. MoDisco Model Browser
 A feature-rich Ecore model browser
 Generic
(metamodelindependent)
 Customizable
(display, fonts,
colors, icons, et
c.)
 Advanced
navigation &
search
capabilities
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10. MoDisco Discoverer Manager
 Define and register model discoverers
– Support for different legacy technologies
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11. MoDisco Workflow
 Specify reverse engineering processes
– Chain discoverers, transformations & generations
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12. MoDisco Support for Java
 Technology-specific components for Java
 Complete
metamodel
 Corresponding
discoverer &
generator
 Transformation
to KDM
 Advanced
composite
discoverer
(Java + KDM)
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13. MoDisco Support for JEE
 Technology-specific components for JEE
 Complete JSP
metamodel &
corresponding
discoverer
 Discoverers for
web.xml & ejbjar.xml files
(based on XML)
+ generic
framework
 JEE queries &
facets (based
on Java)
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14. MoDisco Support for XML
 Technology-specific components for XML
 Generic support
(XSD- or DTDindependent)
 Complete
metamodel
(based W3C
specification)
 Corresponding
discoverer
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15. MoDisco in Action…
Click here
to run the
demo…
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16. Thanks for your attention!
 Useful links
– Eclipse Modeling Project
 http://eclipse.org/modeling/
– Eclipse MoDisco project
 http://www.eclipse.org/MoDisco
– Eclipse EMF Facet project
 http://www.eclipse.org/facet/
 AtlanMod Contact
– Hugo Bruneliere
 R&D engineer and MoDisco project co-leader
 hugo.bruneliere@inria.fr
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