Ivano Malavolta. Research Fellow at the Computer Science Department of the University of L'Aquila (Italy). PhD thesis presentation, University of L'Aquila, March 2012. The full PhD thesis is available here: http:www.di.univaq.it/malavolta/files/IvanoMalavoltaPhDThesis.pdf

1. Software Engineering
and Architecture Group
Software Architecture
by Reuse, Composition
and Customization
Ivano Malavolta
March 2012
http://www.di.univaq.it/malavolta

2. Outline
Research Area
Motivation
Goal
Solution
Conclusions
Schedule for Future Work
Other Activities

3. Research Area (i)
Software Architecture
A set of design decisions taken to generate the architecture artifact

4. Research Area (ii)
Components and connectors
Distribution and configuration
Expected Behaviour
http://www.busonair.eu
Patterns, styles
HW/SW Deployment
Extra-
Extra-functional properties
scalability, performance, testability,
security

5. Research Area (iii)
Focus on views and viewpoints
looking at stakeholders and their concerns

6. SA Conceptual Model (i)
Picture from International Standard for Systems
and Software Engineering – Architectural
Description (ISO/IEC 42010).
Stakeholders
Developer
Architect
End-user
Tester
Project manager
Concerns
functionality, feasibility, usage,
structure, behavior, performance,
resource utilization, security, cost,
data accessibility, privacy,
compliance to regulation, business
goals and strategies

7. SA Conceptual Model (ii)
Architecture Framework
4+1 views
MODAF
Picture from International Standard for Systems
TOGAF and Software Engineering – Architectural
… Description (ISO/IEC 42010).

8. Motivation of this Work (i)
[SURVEY_2012]
Stakeholders concerns can vary tremendously
nature of the system
project-specific constraints
organizational constraints
domain of the system
…

9. Motivation of this Work (ii)
The quality of an SA depends on how stakeholder
concerns are supported
this issue depends on:
the used architectural languages (ADL)
the architecture framework

10. Motivation of this Work (iii)
in industry architects try to solve this issue by:
1. Using multiple views
2. Extending the used ADLs
* This data comes from a survey I worked on
about the usage of ADLs in industry
[SURVEY_2012]

11. Motivation of this Work (iv)
however …
1. frameworks tend to be closed
difficult to reuse viewpoints and concerns across organizations
and domains
2. poor support for ADLs adaptation
– big effort to adapt the engine for the extended language
– extensions are not reusable across languages
3. views consistency is still one of the harder problems in
software architecture*
* Just Enough Software Architecture George Fairbanks, 2010
Architecture,

12. Goal
… to support the definition of Architecture frameworks
with a special consideration for views consistency and
architecture description languages extensibility
Intuition:
• try to get architecture frameworks and ADLs closer to system
stakeholders concerns
• make architecture frameworks and ADLs adaptable and
extensible
• keep consistent the set of views of the system

13. SolutionSystem Concerns Architecture Frameworks Architectural Languages
Stakeholders
Correspondences
Viewpoints
Architectural Assets
Repository
Architecture
Framework
Architecture Architecture Architecture
Description Description Description
A B C

14. Solution
MEGAF:
MEGAF a model-driven infrastructure for building reusable
and extensible architecture frameworks
DUALLy:
DUALLy an automated approach for ADLs interoperability
byADL:
byADL: an approach to adapt and customize existing ADLs

15. Tangible Benefits
Software architects may
1. define new frameworks by composing views, viewpoints,
ADLs and correspondences among them
2. define new ADLs by extending and customizing existing
ones
3. model the system in an environment in which ADLs
interoperate and models conforming to different ADLs
are automatically kept consistent

16. * picture curtesy of Jean bezivin
MDE and Software Architecture
SA
By applying the MDE principle saying that modelx
“models are precise artifacts that can be understood by computers
and can be automatically manipulated”
this work focusses on automation and reuse.

17. Solution - MEGAF
PROBLEM architecture frameworks are closed
SOLUTION an infrastructure for building reusable
and extensible architecture frameworks
reuse among architecture frameworks
Main drivers: homogeneous representation of SA elements
automate consistency and completeness checks
Intuition: ISO/IEC 42010 concepts as a MEGAMODEL

18. VP1 VP2 … VPn St1 St2 … Stm AM1 AM2 … AMh
Viewpoints Stakeholders Architecture Models
conforms to
governs
V1 V2 … Vo
MK1 MK2 … MKr CR1 CR2 … CRi
frames Model Kinds Correspondence Rules Views
holds
Architectural
SC1 SC2 … SCk Framework 2
created within
C1 C2 … Ce
Architectural Architectural
System Concerns Framework 1 Description 1
Correspondence
implements Custom
ADL1
Custom
ADL1 ADL2 ADLj ADL2
… Custom
ADLj
Architectural Languages

19. Publications on MEGAF
International Conferences
[ASE_2010] Rich Hilliard, Henry Muccini, Ivano Malavolta, and Patrizio
Pelliccione. Realizing architecture frameworks through megamodelling
techniques.
techniques In 25th IEEE/ACM International Conference on Automated Software
Engineering (ASE 2010), 2010

20. Solution - DUALLy
PROBLEM views consistency
SOLUTION architectural languages interoperability
Automated model proactive
transformation consistency
techniques it is not consistency
checking only

21. Solution - DUALLy
Architects link an ADL to A0 via a weaving model
wm1 weaving links
wm2
weaving links weaving links
ADL1 A0 ADL2
metamodel metamodel metamodel
generation generation
Conforms to Conforms to Conforms to
ADL1 A0 ADL2
model model model
ADL1_2_A0 ADL2_2_A0
A0_2_ADL1 A0_2_ADL2
Transformations are automatically generated
[SOSYM_2010] [TSE_2012]
Supported MT languages: ATL

22. Solution - DUALLy
[FASE_2012]
A0 metamodel hierarchy of pivot metamodels
A0 hierarchy
e1 A0 e2
ADL1 A1 e5 A2
e3 e7 ADL2
e4 e6
A4 A5
A3
The path through the hierarchy is automatically computed

23. Publications on DUALLy
International Journals
[SOSYM_2010] Romina Eramo, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso Pierantonio. A model-driven
model-
approach to automate the propagation of changes among architecture description languages. Software and Systems Modeling,
languages
(to appear), 2010. special theme on Model-Based Interoperability.
[TSE_2010] Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Damien Tamburri. Providing architectural languages and
tools interoperability through model transformation technologies IEEE Transactions on Software Engineering, 36(1), 119-140,
technologies.
January 2010.
International Conferences and Workshops
[FASE_2012] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso Pierantonio. Model-driven
Model-
techniques to enhance architectural languages interoperability. In Proceedings of the 15th International Conference on
interoperability
Fundamental Approaches to Software Engineering, FASE. To appear, March 2012.
[ECSA_DS_2010] Ivano Malavolta. A model-driven approach for managing software architectures with multiple evolving
model-
concerns.
concerns In ECSA 2010 (Doctoral Symposium), 4th European Conference on Software Architecture, August 2010.
[CBSE_2009] Ivica Crnkovic, Ivano Malavolta, and Henry Muccini. A model-driven engineering framework for component models
model-
interoperability.
interoperability In 12th International Symposium on Component-Based Software Engineering (CBSE 2009), pages 36-53, Berlin,
Heidelberg, June 2009. Springer-Verlag.
[UML_AADL_2009] Ivano Malavolta, Henry Muccini, and Patrizio Pelliccione. Integrating AADL within a multidomain modeling
framework.
framework In IEEE International Conference on Engineering of Complex Computer Systems, volume 0, pages 341-346, Los Alamitos,
CA, USA, 2009. IEEE Computer Society.
[ASE_DEMO_2008] Ivano Malavolta, Henry Muccini, and Patrizio Pelliccione. DUALLy: a framework for architectural languages
DUALLy:
and tools interoperability In 23rd IEEE/ACM International Conference on Automated Software Engineering (ASE2008). IEEE
interoperability.
Computer Science Press, 15-19 September 2008.

24. Solution - byADL
PROBLEM current ADLs mostly fail to capture multiple
(and varying) stakeholders concerns
SOLUTION extending and customizing existing ADLs w.r.t.
to domain- & organization- specific concerns

25. Solution - byADL
An architect can extend
MMADLx ADLx to better fit his
MMext
concerns
composition
model
Extensions are ADL-
transformations independent and live in MEGAF
it enables reuse
MMcomp semantic migrators
concrete syntaxes links

26. byADL – Abstract Syntax
Automatic
Composition operators:
transformation
• Match
• Inherit
• Reference
• Expand

27. byADL – Concrete Syntaxes
different usability and
3 generic mechanisms to generate effort to customize
editors for the composed metamodel
Grafical
Textual
Tree-based

28. byADL - Semantics
A0 semantic
domain
automatically
generated

29. byADL - Migrators
Guarantee compatibility
with original notations
and tools
reuse of analysis
tools

30. Publications on byADL
International Journals
[TSE_2012] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and
Alfonso Pierantonio. Extending and Customizing existing Architecture Description
Languages through MDE techniques To be submitted to IEEE Transactions on Software
techniques.
Engineering
International Conferences
[ECSA_DEMO_2010] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione,
and Alfonso Pierantonio. ByADL: an MDE framework for building extensible architecture
ByADL:
description languages In 4th European Conference on Software Architecture (ECSA 2010),
languages.
August 2010
[ICSE_2010] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and
Alfonso Pierantonio. Developing next generation adls through mde techniques. In 32nd
techniques
International Conference on Software Engineering (ICSE 2010), May 2010
[ICSE_SRC_2010] Ivano Malavolta. Providing support for creating next generation
software architecture languages In ACM Student Reseach Competition, Poster session at
languages.
ICSE 2010, 2010

31. Evaluation – Case Studies
1. SBSCS:
SBSCS Subscription-based Sensor
Collection Service
2. System:
Health Watcher System
interactive, web-based health
information system
3. FCS:
FCS Flight Control System
4. IECS-MS:
IECS-MS Integrated Environment
for Communication on Ship
(Management System)
5. ACC:
ACC Adaptive Cruise Controller

32. Evaluation - BusOnAir
http://www.busonair.eu
Viewpoints:
Viewpoints system, behaviour, web services
Concerns:
Concerns modularity, distribution, REST, concurrency, dependability
Stakeholders:
Stakeholders architect, developer, system engineer, end-users
ADLs:
ADLs DiaSpec (extended), UML, FSP, REST

33. Evaluation - BusOnAir

34. Evaluation - BusOnAir
System view
WebServices view
DiaSpec
DiaSpec RESTLANG
Comp
Behaviour view
UMLCC FSP

35. Recall
MEGAF:
MEGAF a model-driven infrastructure for building reusable
and extensible architecture frameworks
DUALLy:
DUALLy an automated approach for ADLs interoperability
byADL:
byADL: an approach to adapt and customize existing ADLs

36. Schedule for Future Work
GUI refinement
Usability improvement
MEGAF and DUALLy as collaborative tools
– model transformation as-a-service
MEGAF as an architectural Design Decisions management tool
byADL as an engine to add/remove styles to/from ADLs
add/

37. Conclusions
Proposal.
Proposal. An MDE approach for SA modeling by
• reuse
• composition
• customization
The approach is extensible, and totally generic
it will serve as a starting point for many other
research approaches on SA
Usability is under study

38. Publications (i)
:: 2012 ::
[TSE_2012]
[TSE_2012] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso Pierantonio. Extending
2012
and Customizing existing Architecture Description Languages through MDE techniques To be submitted to IEEE
techniques.
Transactions on Software Engineering.
[SURVEY_2012]
[SURVEY_2012] Ivano Malavolta, Patricia Lago, Henry Muccini, Patrizio Pelliccione, and Antony Tang. Architectural
2012
Languages:
Languages: Accomplishments and Needs -- An Industrial Survey To be submitted to Transactions of ACM
Survey.
Computing Survey, 2012
[SESENA_2012]
[SESENA_2012] Krishna Doddapaneni, Enver Ever, Orhan Gemikonakli, Ivano Malavoltay, Leonardo Mostarda, and Henry
2012
Muccini. A Model-Driven Engineering Framework for Architecting and Analysing Wireless Sensor Networks
Model - Networks.
Submitted for Publication in 34th International Conference on Software Engineering (ICSE 2012)
[JOT_2012]
[JOT_2012] Ludovico Iovino, Ivano Malavolta, and Alfonso Pierantonio. On the impact significance of metamodel
2012
evolution in MDE Submitted for Pubblication to International Journal of Object Technology, March 2012
[UKSIM_2012] Krishna Doddapaneni, Enver Ever, Orhan Gemikonakli, Ivano Malavoltay, Leonardo Mostarda, and Henry
[UKSIM_2012]
2012
Muccini. Path loss effect on energy consumption in a wsn In UKSim - 14th International Conference on Computer
wsn.
Modelling and Simulation (to appear), 2012

39. Publications (ii)
[FASE_2012]
[FASE_2012] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso
2012
Pierantonio. Model- driven techniques to enhance architectural languages interoperability In Proceedings of
Model- interoperability.
the 15th International Conference on Fundamental Approaches to Software Engineering, FASE. To appear, March
2012
:: 2011 ::
[ESEC_FSE_2011]
[ESEC_FSE_2011] Paul Clements, Marìa J. Escalona, Paola Inverardi, Ivano Malavolta, and Eda
2011
Marchetti. Exploiting Software Architecture to support Requirements Satisfaction Testing In Proceedings
Testing.
of the the 8th joint meeting of the European software engineering conference and the ACM SIGSOFT symposium on
The foundations of software engineering, ESEC/FSE. ACM, September 2011.
[SERENE_2011]
[SERENE_2011] Ivano Malavolta, Henry Muccini, and V. Smrithi Rekha. Supporting Architectural Design
2011
Decisions Evolution through Model Driven Engineering In Proceedings of the 3rd International workshop on
Engineering.
Software Engineering for Resilient Systems (SERENE 2011). ACM Digital Library, September 2011.
[INFQ_2011]
[INFQ_2011] Fabio Calvarese, Ivano Malavolta, and Antinisca Di Marco. Towards a graphical representation
2011
for the Æmilia Architecture Description Language. In 2nd Quantitative Information Workshop (infQ), 2011.
Language
:: 2010 ::
[ECSA_DS_2010] Ivano Malavolta. A model-driven approach for managing software architectures with
[ECSA_DS_2010]
2010 model-
multiple evolving concerns In ECSA 2010 (Doctoral Symposium), 4th European Conference on Software
concerns.
Architecture, August 2010.

40. Publications (iii)
[SOSYM_2010]
[SOSYM_2010] Romina Eramo, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso Pierantonio. A
2010
model- languages.
model- driven approach to automate the propagation of changes among architecture description languages
Software and Systems Modeling, (to appear), 2010. special theme on Model-Based Interoperability.
[ECSA_DEMO_2010]
[ECSA_DEMO_2010] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso
2010
Pierantonio. ByAdl: an MDE framework for building extensible architecture description languages In 4th
ByAdl: languages.
European Conference on Software Architecture (ECSA 2010), August 2010.
[ICSE_2010]
[ICSE_2010] Davide Di Ruscio, Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Alfonso
2010
Pierantonio. Developing next generation adls through mde techniques In 32nd International Conference on
techniques.
Software Engineering (ICSE 2010), May 2010.
[TSE_2010]
[TSE_2010] Ivano Malavolta, Henry Muccini, Patrizio Pelliccione, and Damien Tamburri. Providing architectural
2010
languages and tools interoperability through model transformation technologies IEEE Transactions on
technologies.
Software Engineering, 36(1), 119-140, January 2010.
[ICSE_SRC_2010]
[ICSE_SRC_2010] Ivano Malavolta. Providing support for creating next generation software architecture
2010
languages.
languages In ACM Student Reseach Competition, Poster session at ICSE 2010, 2010.
[ASE_2010]
[ASE_2010] Rich Hilliard, Henry Muccini, Ivano Malavolta, and Patrizio Pelliccione. Realizing architecture
2010
frameworks through megamodelling techniques In 25th IEEE/ACM International Conference on Automated
techniques.
Software Engineering (ASE 2010), 2010

41. Publications (iv)
:: 2009 ::
[CBSE_2009] Ivica Crnkovic, Ivano Malavolta, and Henry Muccini. A model- driven engineering framework
model-
for component models interoperability In 12th International Symposium on Component-Based Software
interoperability.
Engineering (CBSE 2009), pages 36-53, Berlin, Heidelberg, June 2009. Springer-Verlag.
[UML_AADL_2009] Ivano Malavolta, Henry Muccini, and Patrizio Pelliccione. Integrating AADL within a
multidomain modeling framework In IEEE International Conference on Engineering of Complex Computer
framework.
Systems, volume 0, pages 341-346, Los Alamitos, CA, USA, 2009. IEEE Computer Society.
:: 2008 ::
[ASE_DEMO_2008] Ivano Malavolta, Henry Muccini, and Patrizio Pelliccione. DUALLy: a framework for
DUALLy:
architectural languages and tools interoperability In 23rd IEEE/ACM International Conference on
interoperability.
Automated Software Engineering (ASE2008). IEEE Computer Science Press, 15-19 September 2008.
[EclipseIT_2008] Ivano Malavolta. DUALLy: un framework per l'interoperabilita' tra linguaggi e tool
DUALLy: l'interoperabilita'
architetturali.
architetturali In Student Track Demo of the Third Italian Workshop on Eclipse Technologies, Eclipse-IT.
CEUR, November 2008.

42. Other Activities
collaborations:
International collaborations :
(periods of study abroad)
Teaching:
Teaching - lecturer Mobile Applications Development 2012
- lect. Advanced Software Engineering 2011
- lect. Analysis and Testing of CB Systems 2011
- lect. Advanced Software Engineering 2009
+ 9 supervised theses
activity:
(Sub) Reviewer activity:
CBSE 2009, ICSOFT 2009, ICST 2009, WICSA 2009, SAC 2010, ICST 2010, ASE 2010,
CBSE 2010, FSE 2010, ICSOFT 2010, MDI 2010, SERENE 2010, SHARK 2010, SoSyM
2010, ECSA 2010, ESEC/FSE 2011, JSS 2011, QSIC 2011, SEIP 2011, STVR 2011, ICST
2012, JSS 2012, AST 2012

43. Side Projects
Business Ideas
1° prize BPC Competition with BusOnAir (http://www.busonair.eu)
Data visualization
Selected for participation to the
EUHackathon 2011 in Bruxelles
(sponsors: Google, Skype)
http://iivanoo.kodingen.com
GIS software development & PM
10 months collaboration with Telespazio
Mobile Apps development (iPhone, iPad)
iPhone, iPad)

44. QUESTIONS ?