Week 02 · reflection
Week 2 Reflection: Trace the Responsibility Chain
Use your Service Responsibility Map.
Weekly summary
In 4–6 sentences, trace one service through this chain:
identity → process → service function → resource → permission → evidence
Explain why collapsing those layers into “the server” makes troubleshooting and security decisions weaker.
Reflection
- Which evidence source in Week 2 answered the most useful question for you: process state, service state, socket state, logs, or permissions? Why?
- What did one evidence source fail to prove?
- Why can running a service with more privilege make a symptom disappear without actually fixing the design?
- Which positive, negative, or regression retest gave you the strongest evidence?
- What resource or permission would you inspect next if the service still failed?
Final checkpoint
Complete:
The service needs permission to __________ because __________, but it does not need permission to __________ because __________.
That is least privilege expressed as a system relationship rather than a slogan.