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Applications

In the Machc ecosystem, Applications are the adaptation and customization layer, acting as the bridge between Core Projects and MachaOn Projects. These projects ensure that generic functionality provided by the Core is tailored and prepared for deployment requirements defined by MachaOn, enabling seamless integration across diverse workflows and infrastructures.

Why Applications Are Essential

Maintenance is one of the most costly aspects of software development—new features, corrections, and integrations often result in navigating through complex systems where accidental defects or compatibility issues are a constant risk. A thoughtfully planned architecture significantly mitigates these concerns by enabling clear separation between components and reducing the likelihood of system-wide breakage.

This principle extends to the Machc ecosystem by splitting responsibilities across Core, Applications, and MachaOn layers. Applications serve as the customization module, ensuring that Core remains reusable and generic, while MachaOn focuses solely on deployment orchestration.

By creating adaptable configurations, Machc Applications allow developers to fine-tune Core components and workflows to meet deployment and business-specific needs—simplifying maintenance while ensuring modularity, flexibility, and scalability.

What is a Machc Application Project?

An Application Project is a module that adjusts and refines Machc Core libraries, adapting them to meet specific workflows, infrastructure, or business requirements. It transforms reusable components from the Core into deployable artifacts within MachaOn Projects. Applications focus on customization without disrupting the modular and reusable design of the Core.

Think of Application Projects like an intermediary layer that configures generic Core functionality into deployment-ready components tailored for production.

Key Responsibilities of an Application Project

1. Customizing Core Logic

Application Projects adapt generic Core libraries (e.g., entities, use case interactors, adapters) to meet specific business or infrastructure needs.

Examples:

  • Customizing a Product entity to handle regional tax rules.
  • Extending authentication logic for multi-tenant environments.

2. Preparing for Deployment

Applications integrate Core components with deployment-specific details, ensuring they align seamlessly with infrastructure requirements.

Examples:

  • Packaging Core components with logging configurations for production.
  • Connecting Core workflows to external APIs or databases.

3. Flexible Adaptation Across Systems

By customizing functionality within Application Projects, you can reuse Core modules across multiple contexts while tailoring them for specific workflows or infrastructures.

This adaptability ensures consistency throughout the Machc ecosystem while allowing freedom to address diverse scenarios.

How Application Projects Work

Stage 1: Start with Core

Applications rely on Core shared libraries, inheriting reusable components such as entities, interactors, and adapters.

Stage 2: Tailor Behavior

Applications modify these shared components to meet the requirements of the deployment environment.

Example:

  • Extend a Customer entity to support user loyalty programs.
  • Refine a workflow to handle region-specific payment gateways.

Stage 3: Prepare for MachaOn

Once tailored, the customized functionality is passed to a MachaOn Project for deployment.

The application serves as the final layer that translates generic business logic into deployment-ready artifacts that align with production goals.

Core vs. Applications: The Separation of Concerns

Understanding where Core ends and Applications begin is critical for maintaining modularity in the Machc ecosystem:

Core Projects Application Projects
Provides shared, reusable logic. Adapts and customizes business logic.
Encapsulates entities and workflows for generic use. Tailors Core functionality for deployment needs.
Designed for consistency across the ecosystem. Configures components based on project or environment.

Commons Library Integration

The Commons Library complements Application Projects by offering reusable utilities and shared services, enabling efficient customization and adaptation workflows. This library includes functionality like logging, configuration management, and helper tools, streamlining development across Core, Application, and MachaOn layers.

Key Features of the Commons Library:

  1. Logging Utilities: Provide structured logging mechanisms for debugging and monitoring across different deployment environments.
  2. Configuration Management: Enable dynamic configurations for Application Projects to abstract environment-specific settings, reducing hardcoded dependencies.
  3. Reusable Tools: Include prebuilt templates, validators, and mechanisms for smooth Application-to-MachaOn integrations.

By combining the Commons Library with Core libraries and Applications, developers gain access to a toolkit that simplifies project workflows while maintaining modularity.

Why Applications Matter

Applications play a pivotal role in separating business logic from deployment logic. Without Applications, Core business rules might become tangled with deployment-specific details, reducing modularity and reusability. The Application layer ensures clean separation, enhancing maintainability and flexibility.

Key Benefits:

  1. Deployment-Specific Adaptation: Enables Core components to align with unique infrastructure or business goals.

  2. Decoupled Design: Keeps business logic separate from deployment, reducing risk when making changes.

  3. Scalability: Allows reusability across projects while enabling adaptation for diverse contexts.

Applications and MachaOn: The Perfect Bridge

Applications act as the intermediary layer between Core and MachaOn, converting generic functionality into deployment-ready components. While MachaOn Projects focus on orchestration and deployment, Applications ensure Core functionality is prepared and aligned with deployment-specific needs.

Together, Applications ensure seamless integration from generic Core rules to production workflows, creating a scalable and modular development pipeline.

Key Benefits of Machc Applications

  1. Align Core Logic with Deployment Goals: Applications ensure Core functionality fits perfectly within the infrastructure requirements of MachaOn projects.

  2. Customizations Without Breaking Modularity: Enable slight deployment-specific customizations while maintaining the integrity and reusability of Core components.

  3. Support for Multiple Deployment Styles: Applications can be fine-tuned for different deployment patterns, including serverless, containers, and traditional server-based systems.

  4. Enhanced Flexibility and Maintainability: Applications isolate deployment-specific customizations, reducing complexity and preventing accidental defects.

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