Clean Architecture Flashcards

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Questions and Answers

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?

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)?

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?

Source code dependencies must point inward, toward higher-level policies. (A) Signup and view all the answers

What does 'Screaming Architecture' mean?

Architecture that should clearly communicate the system's intent and purpose. (C) Signup and view all the answers

What is the role of the Entities layer in Clean Architecture?

To contain business rules and is independent of frameworks and external systems. (A) Signup and view all the answers

What does the Open/Closed Principle (OCP) allow software entities to do?

To be closed for modification but open for extension. (D) Signup and view all the answers

What is the Reuse/Release Equivalence Principle (REP)?

The granularity of a reusable component is determined by the level at which it is independently released. (A) Signup and view all the answers

What is the role of a Presenter in Clean Architecture?

To transform data for UI display while decoupling business logic. (A) Signup and view all the answers

Why is the database classified as a detail in Clean Architecture?

It is a mechanism that shouldn't influence design decisions. (D) Signup and view all the answers

How should business rules interact with the database in Clean Architecture?

By using interfaces to ensure interchangeability. (C) Signup and view all the answers

What is the central focus of Clean Architecture?

Focusing on systems that are easy to change and adhere to design principles. (C) Signup and view all the answers

In what way does Clean Architecture enhance testability?

By isolating business rules from external dependencies. (B) Signup and view all the answers

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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Description

Test your knowledge of Clean Architecture principles with these flashcards. Learn about key concepts like the Single Responsibility Principle, Open/Closed Principle, and more. Perfect for software architects and developers looking to enhance their understanding of software structure and design.