{
  "title": "展厅软件换新版后怎样选最少但关键的回归用例",
  "evidence_type": "synthetic-not-field-measurement",
  "date": "2026-10-23",
  "required_deliverable": "按故障后果筛选的用例集、覆盖表和回退触发条件",
  "fields": [
    "case_id",
    "risk_ids",
    "precondition",
    "input",
    "expected",
    "rollback_trigger",
    "evidence",
    "status"
  ],
  "sample_rows": [
    [
      "TC1",
      "R1;R2",
      "test-node",
      "baseline-project",
      "main-program-and-caption",
      "critical-program-fail",
      "",
      "not-tested"
    ],
    [
      "TC2",
      "R3",
      "test-node",
      "read-only-query",
      "valid-reply",
      "critical-control-fail",
      "",
      "not-tested"
    ],
    [
      "TC3",
      "RECOVERY",
      "backup-ready",
      "restore-old-copy",
      "old-version-operable",
      "restore-fail",
      "",
      "not-tested"
    ]
  ],
  "unmeasured": "未升级真实软件或执行回退；附件提供可用的风险覆盖输入与待执行回归单。"
}