The AMW project: current state and future plans

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The AMW project current state and future
plans Marcos Didonet Del Fabro ATLAS Group
(INRIA LINA), Université de Nantes,
France marcos.didonet-del-fabro _at_
univ-nantes.fr PhD student (oct/04
sep/07) Supervisors Jean Bézivin and Patrick
Valduriez
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Outline

• Introduction
• Application scenario
• Weaving model
• Extensible metamodel
• Prototype
• Interpreting weaving models
• Conclusions
• Future work
• Current project state

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Introduction

• AMW (ATLAS Model Weaver)
• Weaving models
• Weavings capture correspondences (links) between
  model elements
• Correspondences between models
• Traceability
• Mapping between models and a graphical
  representation
• Merging
• Composition operations
• Transformation specification
• Data integration and translation lt-

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Data integration

• Data integration and translation
• Many different types of models
• Need to interoperate
• Class, relational, Mantis, Bugzilla, Java, C,
  Company1, Company2
• Create model transformations
• This process must be efficient
• Match (MMa, MMb) weaving model
• Use of abstract correspondence representations
• Weaving model
• Automates the generation of transformations
• Ma Transform (Mb) - transformation

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Weaving model

• Correspondences as first class entities
• High level and declarative
• Abstracts mapping expressions
• Weavings are not transformations (there is no VM,
  debug, etc)
• Conforms to a weaving metamodel
• Concatenation, equality, etc.
• Namespaces

Bug tracking tool 2
Bug tracking tool 1
Weaving model
bug_severity
Equality
severity
Concatenation
person.id
assigned_to
person.login
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Weaving metamodel (core)

• Basic link management
• extended

Linking semantics
( one link has N endpoints )
Namespace semantics
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Weaving metamodel extensions

• Extended with different link types
• 1 for bug tracking
• (translate, concatenate)
• 1 for merging models
• (merge, override, inherits)
• 1 for reporting
• (A prints B)

Core metamodel

ExtN
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Create weaving model

• ATLAS Model Weaver prototype
• Eclipse EMF (Eclipse Modeling Framework)
• Manipulation of (meta) models
• Dynamic API
• Allows metamodel flexibility
• automatically generated user interface for
  different weaving metamodels
• Based on Eclipse contributions (interconnected
  plugins)

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AMW example (general aspects)

Plugged panels
Identification mechanism
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Interpreting weaving models

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Production of transformations (data integration
and translation)

• Weavings models created once, different target
  languages
• Design the transformations metamodels
• Translate a weaving model
• into a transformation model
• Extract the models into their
• textual syntax
• T, T and T are similar!

AMW
T
T
T
model
SQL
XSLT
ATL
text
File .XSL
File .SQL
File .ATL
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Production of transformations

• Declarative generation pattern (higher-order
  transformation)
• Transform links into transformation expressions
• Link endpoints into bindings
• Provides (transformational) semantics to the
  weaving model
• Last step
• Execute the produced transformation!

Links
Endpoints
target lt- source
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Conclusions

• Weaving model
• Captures the correspondences (links) between
  models
• Extensible to different types of links
• Different scenarios
• Control the complexity of the correspondence
  model
• Higher-order transformations
• Pattern to automatically produce transformations
• Different output models
• Semantics to the weaving model

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Current (and future) work

• Semi automatic generation of weaving models
  (matching)
• WordNet (synonyms)
• car, automobile
• String proximity
• date_ts, date_submitted
• Structural matching
• Hierarchy similarities (attribute, class)
• Use of new ATL compiler
• (no photo)

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Current work

• AMW available as Eclipse GMT subproject
• http//www.eclipse.org/gmt/amw
• Newsgroup
• In progress
• More examples
• Develop a community

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End

• Thank you
• Questions?
• Comments?
• Links
• ATLAS group
• http//www.sciences.univ-nantes.fr/lina/ATLAS/
• AMMA
• http//www.sciences.univ-nantes.fr/lina/atl/
• AMW
• http//www.eclipse.org/gmt/amw
• ATL
• http//www.eclipse.org/gmt/atl