fzi forschungszentrum informatik fzi software engineering palladio: architecture-based quality...
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ORS
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ATIK
FZI Software Engineering
Palladio:Architecture-Based Quality Prediction
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Engineering!
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Palladio+ =010010010101111201001110
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“Bridge Construction Engineeringfor Software”
Palladio
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Model Analysis Forecast
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Quality Prediction with Palladio
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Performance modelof a component-basedsoftware architecture
Performance data Execution time Throughput Resource utilisation
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…Throughput
Reponse TimeUtilisation
AvailabilityMaintainability
Costs
Scenarios
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Design Alternatives Sizing Scalability
Resource UsageOptimisation
ConfigurationOptimisation
Extension ofLegacy Systems
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Added Value
EngineeringTrial and error
Automated monitoring
Estimation of as-is-state
Integrated quality assurance
Ad-hoc quality assurance
Systematic design„Code First“
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Palladio at a glance
Palladio Component Model Quality analysis of
component-based systems Reusable specifications
Queuing network-based Stochastic process algebra (SPA)
Analyses
Development ProcessAllocation
QoS Requirement Annotation
QoS Information Integration
Qo
S A
na
lysi
s
System Architect
System Model Transformation
System Deployer Domain Expert
System Environment Specification
QoS Attribute Specification of Resources and
Connections
Use Case Analysis
Usage Model Refinement
Use Case Models
Scenarios(Activity Charts)
Component QoS Specification
(Data Dependencies,Resource Consumption)
Annotated System Architecture
Fully QoS Annotated System Architecture
QoS EvaluationModel
QoS Metrics
Results forQoS Metrics
Component Specs &Architecture
Component Specs & Architecture
Use Case Models
AnnotatedDeployment
Diagram Refined User
Model
SystemEnvironment
DeploymentDiagram
Component Developer
BusinessRequirements
QoS Evaluation
DeploymentDiagram
Adopted CBSE development process Single tool for development and analysis
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Palladio: Kinds of Models
Holistic view Software and hardware Static and dynamics Allocation and usage profile
Software-components (static)
Hierarchy (static)
Software-services (dynamics)
Resource environment
Allocation / deployment
Usage profile
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Palladio
Performance Analysen:
Komponenten-modell
Architektur-modell
Hardware- undDeployment-
modell
Nutzungs-modell
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Palladio
Performance Analysen:
Komponenten-modell
Architektur-modell
Hardware- undDeployment-
modell
Nutzungs-modell
Antwortzeiten
Service-Level Prediction
Ressourcenauslastung
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Engineer your software
Trial and Error
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ORS
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ATIK
PalladioThe Quality Software People.
www.palladio-simulator.com