Context

The system will use an external payment provider. If a different payment provider is chosen, the system needs to be able to quickly adapt to the new payment provider.

Trigger

Development team needs to integrate a new payment provider.

Acceptance Criteria

• Integration can be done without changing any other subsystem or component
• For all other subsystems, the following remains identical:
  • Source code
  • Compile, build and test processes
  • Deployment, installation and configuration