Hello phanichirala,
FYI: The term "Extension Factory" has been retired in the light of SAP Cloud Platform Extension Suite (blog).
Now to your question:
"SAP Cloud Platform Serverless Runtime" is the perfect fit for light-weight extensions in a fully-managed serverless environment. You can create NodeJS-based functions to extend your digital core.
"SAP Cloud Platform, Kyma runtime" allows you to deploy cloud-native solutions as microservices into the Kubernetes-based runtime. You can combine these microservice-based applications or extensions with serverless functions as the Kyma runtime includes a serverless engine.
In a nutshell:
- Serverless Runtime is light-weight and scales down to zero, but can only be used for functions.
- Kyma runtime enables microservice-based architectures to combine them with functions, but the runtime has a bigger initial footprint.
Best regards,
Marco.
