Meta-Evolution Style for Software Architecture Evolution lah Ad - - PowerPoint PPT Presentation

Meta-Evolution Style for Software Architecture Evolution

Ad Adel Ha Hassan n and Mourad d Oussalah lah

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SOFSEM 2016 Harrachov, Czech Republic

Outline

 Motivation  Preliminaries  Evolution styles  Meta-evolution style  Conclusion  Future Work

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Motivation

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 Different techniques (evolution styles) to model

software architecture evolution process

 Mapping,  Comparing,  Reuse and  Interchange modeling concepts among evolution

styles.

Preliminaries

 Change is a recurrent fact of life  Software systems have to change to accommodate

the new requirements of

 Markets and  Technologies

 Software architecture is subject to change, like any

• ther software artifacts.

 to keep abreast or to plan the system change.

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Preliminaries

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 Architecture-centric evolution

 elucidates the reason behind design decisions  permits system restructuring at a high level  Explore and compare different scenarios

 Process Modeling

aims to capture standardized concepts to model processes

for better understanding, management, improvements and …..

Preliminaries

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 Can we model the potential architecture evolution

scenarios in a particular domain

 To support architects in conducting future evolution

 Analysis  Tradeoff among these scenarios

Evolution styles

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 provides the vocabulary of concepts necessary for

modeling architecture evolution activities

 to model the potential scenarios in evolving a

domain-specific software architecture.

 These scenarios grouped together to be an evolution

style

 Select optimum scenario fit situation at hand

Evolution styles

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 Garlan et al. evolution style

Evolution styles

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 Cuesta et al. evolution

style.

 Oussalah et al. evolution

style.

Meta-evolution style MES

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 Each style has specific vocabulary and mechanism

and

 To compare, interchange and reuse the best practices  we need to unify the concepts  Meta-modeling technique is used to define a meta-

evolution style MES

 Aim to express the different styles

Meta-evolution style MES

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 MES and construction view of evolution style

Meta-evolution style MES

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 MES is a component-oriented concept for modeling

the software architecture evolution process

Meta-evolution style MES

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 Vertical mapping

Meta-evolution style MES

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 Horizontal mapping  To map with MOF

compatible models (e.i. UML, SPEM )

 the OMG UML Profile

for MOF specification defines rules to transform a MOF model into a UML model

  Mapping MES to MOF

Meta-evolution style MES

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 SPEM Software Process Engineering Metamodel  SPEM is defined as a UML profile Garlan et al. style SPEM metamodel Operator, Transition Activity Architect Role Evaluation Function Guidance Constraint Responsibility, Relationship, Guidance Evolution State Work Product

Garlan style and SPEM: corresponding elements

Conclusion

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 MES’s concepts conformed by different styles  Using the transferring rules enacted by MES

It is easy to translate an evolution style to

 Other evolution style  MOF compatible modeling language (SPEP/UML, EPFC)

Future Work

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 Develop a framework based on MES

 allow to exploit, reuse and extend styles  to build a library contain a variety of evolution styles

 Explore the meta-evolution style with dynamism

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