Hexagonal Architecture (Ports & Adapters)
Business Profile
Core Value Proposition
Hexagonal Architecture (Ports & Adapters) provides a pattern and guidance that enables an application to be driven by users, programs, automated tests or batch scripts while keeping its core logic decoupled from external devices and databases, allowing testing in isolation and flexible adapter substitution.
Target Customer
{"Software architects","Software developers","QA engineers","Organizations implementing software systems seeking decoupled, testable architectures"}
Key Differentiator
Inside-outside symmetry with clearly defined ports and adapters, allowing multiple adapters per port and enabling headless operation and API-driven interactions.
Implementation Timeline
Not specified in the provided content
Pain Points
- 1Business logic leaking into the user interface/presentation layer, hindering automated testing and maintainability
- 2Difficulty testing and integrating with external systems like databases or services when they change or fail
- 3Limited ability to regression-test or substitute technologies without impacting core application logic
Key Features
- 1Inside vs. outside ( Ports & Adapters ) architecture to decouple core logic from external devices/databases
- 2Multiple adapters per port to support diverse technologies (GUI, test harness, HTTP, mocks, databases, etc.)
- 3 distinction between driving (primary) adapters and driven (secondary) adapters
- 4Support for headless execution via APIs and in-memory/mock components for testing
- 5Use of automated tests and test harnesses (e.g., FIT) to drive and verify behavior
Target Customer Industries
Client Results
- 1Improved testability and maintainability of software systems
- 2Enhanced ability to run automated regression tests and isolate changes
- 3Greater flexibility to replace or add adapters/technologies without altering core logic
Competitive Advantages
- 1Significant improvement in testability through isolation of business logic from external interfaces
- 2Flexibility to substitute adapters and technologies without changing core code
- 3Supports headless operation and API-driven integration
- 4Facilitates automated testing and regression testing workflows
Key Benefits
Case Studies & Success Stories
Weather service use case (Ports & Adapters example)
An architecture example with four natural ports: weather feed, administrator, notified subscribers, and subscriber database. Demonstrates adding an HTTP feed and email notification adapters and running the application in headless mode for automated regression testing.
Intermountain Health Care sample code contribution
Acknowledgement of providing sample code used in the hexagonal architecture article, illustrating healthcare domain relevance.
Additional Product Information
Product Description
Pattern and guidance for structuring software so core application logic remains isolated from UI and data stores, enabling multiple interchangeable adapters and robust testing.
Target Market
Software development teams, architects, and QA groups building enterprise software across healthcare, government/public sector, and technology companies.
Unique Value Proposition
Inside-outside architecture that decouples internal business logic from external systems, enabling flexible adapters, headless operation, and strong testability.
Technical Requirements
Content highlights ports and adapters concept, primary vs secondary adapters, examples using FIT, in-memory/mock databases, and Java code samples illustrating adapters and repositories.
Pricing Model
Not specified
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