Solution Strategy

• Modular monolith (1 API-Gateway as deployable, maybe a separate EAI adapter for support of API v1)
• Development as Open Source Project on GitHub
• REST API following resource-oriented design
• API-first interface design and development, based on OpenAPI-V3 (upstream)
• SOAP communication with DMS (based on manufacturer house standard API "FSCGOVXML")
• Spring Boot based Java development
• Hexagonal / onion architecture for source code organization
• Token-based authentication via JWT/Keycloak
• Deployment on internal OpenShift platform ("CAP")