C1.2 Integration of 3rd-party Systems Into the Application
These techniques foster integration with 3rd-party systems running outside of the system, e.g., by using their API (see L41 and L35 for two example systems). We also classify the legacy system in a migration scenario as such a 3rd-party system as we noticed that the techniques for both highly correlate. The reason might be the reduced disposition to introduce significant changes for integration to a system that will vanish over the course of the migration.
Usage Type
The distinguishing usage type is service-consumption of an external system. The microservice-based application majorly uses the third-party or legacy system to provide its service.