# ADR for Payment Boundary

## Context
The payment processing system is pivotal for the business operations, therefore a well-defined boundary is necessary to manage dependencies, isolate services, and ensure the resilience of the application.

## Decision
We will implement a microservices architecture for payment processing, with the following boundaries: 1. Payment Service, 2. Notification Service, 3. Reporting Service. These services will communicate through well-defined APIs and will be independently deployable. 

## Alternatives
1. Monolithic architecture - rejected due to tight coupling and scalability issues.
2. Service-oriented architecture - rejected due to complexity in service integrations compared to microservices.

## Consequences
This decision allows for better scalability and maintainability of the payment processing system but will introduce challenges in inter-service communication and data consistency management.