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Towards Recovering the Software Architecture
of Microservice-based Systems
Giona Granchelli, Mario Cardarelli, Paolo Di Francesco,
Ivano Malavolta, Ludovico Iovino, Amleto Di Salle

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Paolo Di Francesco
Roadmap
• Microservice Architectures (MSAs)
• MicroART Approach
• MicroART Prototype
• Conclusions
Roadmap

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Paolo Di Francesco
Microservice architectures
MSA is an architectural style inspired by service-oriented computing
• Small services
• Running in own process
• Lightweight communication
Introduction

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Paolo Di Francesco
Microservice architectures
• Products not Projects
• Cross-functional teams
• Infrastructure automation
• Intelligence in the endpoints
• Decentralized governance of
• Language
• Data
Introduction
Delivery Pipelines
Teams Capabilities

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Microservice architectures
Introduction
Monolith
Microservices

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MicroART Approach
• Problem: How to have a clear understanding of the overall
architecture?
• MicroART
1. Reverse Engineering
2. Model refinements
3. A Domain-specific language (DSL)
MicroART Approach

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Reverse Engineering
Goal: Reconstruct the architecture of complex systems in an
automated manner
Reverse Engineering

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Architecture Recovery
Architecture Recovery

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Domain Specific Language
Domain Specific Language

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Architecture Recovery
Architecture Recovery

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Architecture Recovery
Architecture Recovery

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Towards MSA Recovery
• Model refinements
• Produce an architectural model more significant to the
architect’s purposes
• Semi-automatic
• Iterative
Towards MSA Recovery

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Architecture Refinement
• Service Discovery
• Services find each other dynamically in the network
• Loose coupling
• Mask “real” dependencies among services
Architecture Refinement

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Architecture Refinement
Service Discovery Resolution
1. Remove Links
2. Remove the Service Discovery
3. Use log traces to identify new Links
Architecture Refinement

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MicroART Tool
• Prototype
• GitHub
• Docker
• Benchmark
• Open source
• Third party
MicroART Tool
https://github.com/microart/microART-Tool

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MicroART Validation
MicroART Validation
Architecture Model Architecture Refined Model

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MicroART Tool
MicroART Tool

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MicroART Approach
• Applicable to existing systems
• Benefits
• Model-based representations
• Graphic rendering
• Change impact analysis
• Reasoning
MicroART Approach

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Conclusions
Conclusions