Real-life-as-SSOT JTP attribution analysis: quantify divergence between start-of-year studentAssignments (error-prone excel import) and actual student JTP picks (práctica.jtpUserId). Two mismatch classes: (1) JTP students picked but aren't assigned to; (2) students assigned to a JTP who picked a different one. Analysis only first (no writes); evidence base for evidence-based reassignment (NOT admin-pick UI). Links MARS-43 + live-vs-snapshot rule. (Elazar 2026-06-14)

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• wi-cli-venus created · 2026-06-14
• wi-cli-venus commented · 2026-06-14
  Analysis complete (db-mars, analysis-only, active periodos 2026-1C + Postgrado). Class 1 (student picked a JTP the excel doesn't assign them): 50 students, 41 distinct picked-JTPs, concentrated Com B(12)/C(11)/F(9) = >half volume. Class 2 (assigned a JTP never picked): 4 students (clean mid-course switches). Confirms práctica.jtpUserId is stronger ground truth than start-of-year excel. Remediation (attribute by actual pick vs frozen studentAssignments) is a DATA change — held for Elazar GO; asked design-now vs park-as-WI.