Some exemplary guiding questions:
How do we deploy and configure pub-sub systems scalably?
How do we ensure that the end-to-end QoS issues are met?
- What about multidimensional QoS issues (real-time + fault tolerance + security)
Are there common patterns of deployment and configuration across different pub-sub middleware systems?
Can we build D&C tools for pub-sub systems that operate in an environment using heterogeneous pub-sub middleware and still manage QoS?
Can a common standardized pub-sub middleware be specialized (i.e., customized, optimized) by tools and made suitable for different use cases?