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Recovery-Oriented Computing User Study

Explore scenarios to restore e-mail service quickly, minimize mishandled e-mails, prioritize service over changes made by admins. Per-trial information for two sessions provided.

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Recovery-Oriented Computing User Study

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  1. Recovery-Oriented ComputingUser Study Scenario Descriptions October 2003

  2. Notes • Each subject performed two trials, both with the same scenario • In each trial, the subject was given two pages from this file: • the scenario description (Session Overview) • same in both trials • the per-trial information • different in each trial • Scenario and trial numbers were not reproduced in the printed materials

  3. The Three Scenario Descriptions(only one used per subject)

  4. e1 Session Overview (Scenario #1) • Length: 30 minutes • Goal: • restore the e-mail service to normal operation as quickly as possible • minimize the amount of lost e-mail and user work • you should prioritize restoring service over preserving changes made by other administrators • User complaint: • incoming e-mail smaller than 200Kbytes is being silently dropped

  5. e2 Session Overview (Scenario #2) • Length: 30 minutes • Goal: • restore the e-mail service to normal operation as quickly as possible • minimize the amount of mishandled e-mail andlost user work • you should prioritize restoring service over preserving changes made by other administrators • User complaint: • e-mail is no longer being filtered for SPAM or viruses • note: e-mail is being properly filtered when an X-Scanned-By header appears in delivered messages

  6. e4 Session Overview (Scenario #3) • Length: 30 minutes • Goal: • restore the e-mail service to normal operation as quickly as possible • minimize the amount of lost e-mail and user work • you should prioritize restoring service over preserving changes made by other administrators • User complaint: • no incoming e-mail is being received

  7. The Per-Trial Information(one per trial)

  8. Trial #1 Details • E-mail server: undovm1.cs.berkeley.edu • access via ssh shortcut on desktop • root password: <elided> • E-mail user accounts: user1 – user200 • E-mail test user account: user250 • password: <elided> • Operations log: /root/operations_log.txt • Undo system is available for this session

  9. Trial #2 Details • E-mail server: undovm2.cs.berkeley.edu • access via ssh shortcut on desktop • root password: <elided> • E-mail user accounts: user1 – user200 • E-mail test user account: user250 • password: <elided> • Operations log: /root/operations_log.txt • Undo system is not available for this session

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