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The Tropos visual modeling language A meta-model. Anna Perini1, Angelo Susi1, Davide Bertolini1, Haralambos Mouratidis2 1ITC - IRST Via Sommarive, 18, I-38050, Trento ... – PowerPoint PPT presentation

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Title: Nessun titolo diapositiva


1
The Tropos visual modeling language A meta-model.
Anna Perini1, Angelo Susi1, Davide Bertolini1,
Haralambos Mouratidis2 1ITC - IRST Via
Sommarive, 18, I-38050, Trento-Povo,
Italy perini,susi,bertolini_at_irst.itc.it 2School
of Computing and Technology University of East
London, Barking Campus, Dagenham H.Mouratidis_at_uel.
ac.uk
2
Context
  • A Tropos meta-model implemented in a tool (TAOM4E
    http//sra.itc.it/tools/taom/). It is a revision
    of the one presented in Jaamas 2004.
  • An Unifying metamodel for AO specification
    under discussion in AOSE TGF and a proposal in a
    paper presented at AOSE04 (C. Bernon, M.
    Cossentino, M-P. Gleizes, P. Turci, F.
    Zambonelli)

3
Outline
  • A slide recalling how visual modeling in Tropos
    looks like
  • The Tropos meta-model (specified according to MOF
    2.0)
  • Our proposal on how to integrate it in the
    Unifying metamodel (to be discussed)
  • Agent structure
  • Agent interactions
  • Agent society and organizational structure
  • Agent implementation
  • An overview of the technology we used for
    implementing it.

4
AO Visual Modeling with Tropos
Early Requirements
Late Requirements
Architectural Design
Implementation
Detailed Design
Actors in the organizational setting
Sub-system Actors
Agents
Sw Agents
System Actor
Requirement driven approach
5
Tropos metamodel 1/2
  • Actor an entity that has strategic goals
    andintentionality
  • Goal actors' strategic interests
  • Resource a physical or an informational
    entity
  • Plan a way of doing something
  • Dependency depender ? dependum ? dependee.

6
Tropos metamodel 2/2
  • AND/OR decompositionroot(Goal) ? sub(Goals)
  • Contribution towards the fulfillment of a goal
  • Means-end analysis a means to satisfy the
    goal.

7
A Unifying Meta-Model
C. Bernon, M. Cossentino, M-P. Gleizes, P. Turci,
F. Zambonelli. A Study of some Multi-agent
Meta-Models (AOSE 04)
8
Discussion 1/2
  • Agent structure
  • Agent a software having property such as
    autonomy, reactivity, proactivity
  • Role abstract characterisation of the behaviour
    of a social actor
  • Position represents a set of roles
  • As a result we could add all Tropos concepts
  • GOAL/PLAN (with analysis technique)
  • Resource -gt Resource

9
Discussion 2/2
  • Agent interactions
  • Initially, interactions are modelled in terms of
    social dependencies
  • Later they are translated into structural
    patterns of interactions between the agents of
    the system (? UML)
  • Moreover, agents are able to communicate with
    their environment in terms of events that
    describe a triggering condition for an agents
    actions.
  • Agent society and organizational structure
  • During E.R. stage an organisational model is
    produced
  • This model forms the basis for the systems
    structure
  • a set of organisational styles inspired by
    organisation theory (pyramid, matrix, auction)
  • social patterns (such as mediator, broker and
    embassy).
  • Belongs relationship if we are not modelling
    role
  • Agent implementation
  • The implementation activity follows step-by-step
    the detailed design specification on the basis of
    the establish mapping between the implementation
    platform constructs and the detailed design
    notions

10
TAOM4E technologies
  • Meta Object Facility abstract language and
    framework for specifying, constructing and
    managing technology neutral meta-models.
  • Model Implementation JMI MDR (now EMF)
  • Model Persistence XML XMI
  • Eclipse (http//www.eclipse.org/)

11
Model Driven Architecture
  • Separate business logic (processes, rules) from
    supporting technologies.
  • Models are centric
  • Target middleware is not important.
  • Platform Independent Models (PIM)
  • Without middleware details
  • Platform Specific Models (PSM)
  • Including all middleware details
  • PIM to PSM transformations (QVT)
  • Models and Mappings become your corporate
    assets

Another Model
Bezivin, 2004
12
Conclusion
  • The Tropos meta-model (specified according to
    MOF1.4)
  • A proposal on how to integrate it in the
    Unifying metamodel (presented at AOSE04)
  • An overview of the technology we used for
    implementing it in the TAOM4E tool, following MDA
    directives
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