Podcast
Questions and Answers
What is the primary goal of software architecture?
What is the primary goal of software architecture?
- To ensure optimal performance under heavy load.
- To maximize the speed of software deployment.
- To minimize the human resources required to build and maintain the system. (correct)
- To minimize resource allocation for project management.
Which value of software becomes more critical over time?
Which value of software becomes more critical over time?
- Performance, to meet increasing user expectations.
- Security, to prevent data breaches.
- Structure, as maintainability directly affects long-term costs. (correct)
- Behavior, as user demands shift frequently.
What is the Single Responsibility Principle (SRP)?
What is the Single Responsibility Principle (SRP)?
- A module should be reusable across different systems.
- A module should have one, and only one, reason to change. (correct)
- A module should be responsible for providing utilities.
- A module's dependencies should be kept to a minimum.
What is the Dependency Rule?
What is the Dependency Rule?
What does 'Screaming Architecture' mean?
What does 'Screaming Architecture' mean?
What is the role of the Entities layer in Clean Architecture?
What is the role of the Entities layer in Clean Architecture?
What does the Open/Closed Principle (OCP) allow software entities to do?
What does the Open/Closed Principle (OCP) allow software entities to do?
What is the Reuse/Release Equivalence Principle (REP)?
What is the Reuse/Release Equivalence Principle (REP)?
What is the role of a Presenter in Clean Architecture?
What is the role of a Presenter in Clean Architecture?
Why is the database classified as a detail in Clean Architecture?
Why is the database classified as a detail in Clean Architecture?
How should business rules interact with the database in Clean Architecture?
How should business rules interact with the database in Clean Architecture?
What is the central focus of Clean Architecture?
What is the central focus of Clean Architecture?
In what way does Clean Architecture enhance testability?
In what way does Clean Architecture enhance testability?
Flashcards
Presenter in Clean Architecture
Presenter in Clean Architecture
A layer in Clean Architecture that transforms data from the business logic into a format suitable for the user interface, ensuring separation of concerns.
Humble Objects
Humble Objects
Objects designed to have minimal logic, making them easier to test and maintain. They focus on data persistence and retrieval, leaving complex calculations and decision-making to other layers.
Database is a detail in Clean Architecture
Database is a detail in Clean Architecture
In Clean Architecture, the database is considered a detail because it's an implementation mechanism, not the core of the system. The system's design should not be dictated by the database.
Business Rules and Database Interactions
Business Rules and Database Interactions
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Key Takeaway from Clean Architecture
Key Takeaway from Clean Architecture
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Goal of Software Architecture
Goal of Software Architecture
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Importance of Software Structure
Importance of Software Structure
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Two Values of Software
Two Values of Software
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Single Responsibility Principle
Single Responsibility Principle
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Open/Closed Principle
Open/Closed Principle
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Reuse/Release Equivalence Principle
Reuse/Release Equivalence Principle
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Common Closure Principle
Common Closure Principle
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Dependency Rule
Dependency Rule
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Study Notes
Clean Architecture Flashcards
- Software architecture's primary goal is to minimize human resources needed for building and maintaining the system.
- Architecture is crucial for long-term software success because it facilitates adaptability to changing requirements and reduces maintenance costs.
- Two key software values are behavior (meeting user needs) and structure (maintainability and adaptability).
- Structure becomes significantly more important over time due to its impact on long-term maintenance costs.
- Single Responsibility Principle (SRP): A module should have only one reason to change.
- Open/Closed Principle (OCP): Software entities should be open for extension but closed for modification, enhancing adaptability.
- Reuse/Release Equivalence Principle (REP): The granularity of a reusable component is determined by the level at which it's independently released.
- Common Closure Principle (CCP): Classes changing for the same reasons and at the same time should be grouped in the same module.
- Dependency Rule in a clean architecture: Source code dependencies should point towards higher-level policies. Lower-level details depend on higher-level abstractions.
Clean Architecture Core Layers
- Entities: Contain business rules and are independent of frameworks/external systems.
- Use Cases: Implement business rules.
- Interface Adapters: Handle interactions between the system and external systems (e.g., UI or databases).
- Frameworks/Drivers: Low-level components interacting with the environment.
Screaming Architecture
- "Screaming Architecture" means a well-designed architecture clearly communicates its intent and purpose.
- Structure the system based on use cases and business rules rather than specific frameworks.
Presenters and Humble Objects
- Presenters transform data into a format suitable for presentation (e.g., UI display).
- Humble objects have minimal logic, facilitating testing and maintenance.
The Database as a Detail
- Databases are considered a detail in Clean Architecture; they are a mechanism, not the core system design.
- Business rules should interact with the database through interfaces, allowing for interchangeability.
Key Takeaway from Clean Architecture
- The focus is on creating easily adaptable, maintainable systems that follow solid design principles.
- Clean Architecture improves testability by isolating business rules from external dependencies.
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