---
title: "Architecture"
description: "Architecture"
type: "docs"
category: "doc"
tags: []
authors: [Anonymous]
date: "2026-09-09"
last_update: "2026-09-09"
time_minutes: 3
draft: false
unlisted: false
url: "https://www.derafu.dev/docs/core/backbone/architecture"
---

# Architecture

Derafu Backbone provides a structured framework for building modular and maintainable PHP libraries. It follows a hierarchical organization that separates concerns into distinct components, making your code more organized, testable, and extensible.

{.w-75 .mx-auto}
![Derafu Backbone Core Architecture](https://www.derafu.dev/img/diagrams/content/docs/core/backbone/derafu-backbone-architecture.svg)

### Package

**Definition**: A high-level container representing a complete domain or subdomain within your application.

**Responsibility**: Groups functionally related components that work together to provide domain-specific capabilities.

**Characteristics**:

- Represents a complete business domain (e.g., Billing, Accounting, Human Resources).
- Contains multiple components.
- Provides domain-wide configuration and services.
- Acts as the primary entry point for domain functionality.

**Examples**: `BillingPackage`, `AccountingPackage`, `HumanResourcesPackage`

### Component

**Definition**: A functional area or module within a domain package.

**Responsibility**: Groups workers that handle specific aspects of the domain.

**Characteristics**:

- Represents a distinct functional area within a domain.
- Contains multiple workers focused on related tasks.
- Provides component-specific configuration.
- Manages cross-cutting concerns within its functional area.

**Examples**: `DocumentComponent`, `ExchangeComponent`, `TradingPartiesComponent`

### Worker

**Definition**: Coordinator of business operations related to a specific aspect of functionality.

**Responsibility**: Exposes public methods that can be called by clients and coordinates Jobs, Handlers, and Strategies to perform work.

**Characteristics**:

- Acts as a facade for the underlying implementation.
- Exposes domain operations through public methods.
- Coordinates the execution of jobs and handlers.
- May implement simple operations directly.
- Delegates complex processing to handlers.

**Examples**: `BuilderWorker`, `RendererWorker`

### Job

**Definition**: An atomic, self-contained unit of work that performs a single operation.

**Responsibility**: Executes a specific task with clear inputs and outputs.

**Characteristics**:

- Focused on doing one thing well.
- Encapsulates a single operation.
- Has clear, well-defined inputs and outputs.
- Does not orchestrate other jobs.
- Reusable across different contexts.
- Stateless and idempotent when possible.

**Examples**: `NormalizeBoletaAfectaJob`, `NormalizeFacturaAfectaJob`

### Handler

**Definition**: Orchestrator of complex processes involving multiple operations.

**Responsibility**: Coordinates multiple jobs or strategies to complete complex workflows.

**Characteristics**:

- Orchestrates multiple operations in sequence.
- Manages workflow and process state.
- Selects appropriate strategies based on context.
- Handles errors and transactional boundaries.
- Implements business process logic.
- Can use multiple jobs and strategies.

**Examples**: `EmailSenderHandler`, `SiiSenderHandler`

### Strategy

**Definition**: Specific implementation of an algorithm or approach to solving a problem.

**Responsibility**: Provides variant implementations for specific operations that can be interchanged.

**Characteristics**:

- Implements a specific algorithm or approach.
- Allows for swappable implementations.
- Used by handlers to provide different behaviors.
- Focuses on "how" something is done.
- Follows the Strategy design pattern.
- Encapsulates specific implementation details.

**Examples**: `JsonParserStrategy`, `XmlParserStrategy`, `YamlParserStrategy`

## Benefits of This Architecture

1. **Separation of Concerns**: Each component has a clear, single responsibility.
2. **Modularity**: Components can be developed, tested, and deployed independently.
3. **Extensibility**: New implementations can be added without modifying existing code.
4. **Testability**: Clear boundaries make testing easier and more focused.
5. **Maintainability**: Organized structure makes the codebase easier to understand and maintain.
6. **Flexibility**: Strategies allow for varying implementations without changing coordination logic.

## Design Pattern Comparisons

- **Jobs**: Similar to the Command Pattern.
- **Handlers**: Combination of Chain of Responsibility and Mediator patterns.
- **Strategies**: Direct implementation of the Strategy Pattern.
- **Workers**: Follow the Facade Pattern.
- **Overall Structure**: Influenced by Hexagonal/Ports and Adapters Architecture.

This architecture provides a clear separation of responsibilities, allowing for component reuse and making your system more adaptable to changing requirements.



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Last updated on 09/09/2026