Defining Module Boundaries in Micro Frontends

Introduction

Micro Frontends represent an architectural style where a web application is composed of smaller, independently deployable modules. Defining module boundaries is crucial for ensuring that these modules are cohesive and loosely coupled.

Key Concepts

Module Cohesion: Each module should encapsulate related functionalities.

Loose Coupling: Minimize dependencies between modules for easier management.

Independent Deployment: Modules should be deployable without affecting others.

Step-by-Step Process

Follow these steps to define effective module boundaries:

Identify the core functionalities of your application.
Group related functionalities into modules.
Determine the interactions between modules.
Define clear APIs for each module.
Document the responsibilities and interfaces of each module.

Flowchart Example


          graph TD;
              A[Identify Core Functionalities] --> B[Group Related Functionalities];
              B --> C[Determine Interactions];
              C --> D[Define Clear APIs];
              D --> E[Document Responsibilities];

Best Practices

Key Best Practices

Use a consistent naming convention for modules.
Leverage shared components to reduce redundancy.
Regularly review and refactor module boundaries as needed.
Employ versioning for APIs to manage changes smoothly.

Note: Always prioritize user experience by ensuring that module transitions are seamless.

FAQ

What are the benefits of defining module boundaries?

Defining module boundaries enhances maintainability, scalability, and promotes team autonomy.

How do I know if my module boundaries are effective?

If teams can work independently, and changes in one module do not disrupt others, you likely have effective boundaries.

Can module boundaries change over time?

Yes, as your application evolves, so should your module boundaries to reflect new requirements and optimizations.