17-811 Self-Healing Systems: Class Discussion Summary

Summary of Class Discussion for April 30 by Owen Cheng
 

Wrap-up discussion:  High-level themes that run through the papers read in the course

• Internal vs external adaptation
• Global vs local control/model
• Explicit vs implicit adaptation/monitoring (i.e., out-of-band vs in-band, is A/M part of or apart from O/I)
• Adaptive vs static self-healing
• Self-healing (structural) styles
• layer
• peer-to-peer
• Behavioral aspects would be the property of the SHS, e.g., pushvs pull
•  Different levels of abstractions
• Correctness assumptions
• Advisory (Prism) (degree of utility) (unification of A/M)
• Uses (I use you, so you have to be correct)
• Fidelity modes
• Full operation
• Degraded modes of operation (graceful degradation)
• Implementation vs architectural views of a SHS