# TIMELINE.yml - Fase 2: Robustecimiento

phase: 2
name: Robustecimiento y Migración BD
period: Mes 2 (Septiembre 2024)
start_date: "2024-09-01"
end_date: "2024-09-30"
budget_mxn: 50000
story_points: 80
status: completed
last_updated: "2025-11-08"
note: "Actualizado con métricas reales de implementación"

# ============================================================================
# ÉPICAS
# ============================================================================

epics:
  - code: EMR-001
    name: Migración y Robustecimiento de BD
    sp: 80
    budget: 50000
    weeks: "1-4"
    status: completed
    team: [database, backend]
    critical: true

# ============================================================================
# HITOS
# ============================================================================

milestones:
  - date: "2024-09-08"
    milestone: Primeras 5 migraciones ejecutadas
    epic: EMR-001
    deliverables:
      - 13 schemas creados
      - Tablas base migradas
      - Estructura modular establecida

  - date: "2024-09-15"
    milestone: Migración de datos completada
    epic: EMR-001
    deliverables:
      - Todos los datos migrados
      - Índices batch 1 creados
      - Validación de integridad OK

  - date: "2024-09-22"
    milestone: Seguridad y funciones implementadas
    epic: EMR-001
    deliverables:
      - 24 políticas RLS activas (ACTUALIZADO: era 45 planificado, 24 implementado)
      - 61 funciones creadas (ACTUALIZADO: superó objetivo de 28)
      - 39 triggers implementados (ACTUALIZADO: superó objetivo de 18)

  - date: "2024-09-30"
    milestone: Deployment a producción (ZERO DOWNTIME)
    epic: EMR-001
    deliverables:
      - Migración completa en producción
      - Performance +65% verificado
      - 0 minutos de downtime
      - Rollback disponible

# ============================================================================
# SPRINTS
# ============================================================================

sprints:
  - number: 5
    start_date: "2024-09-01"
    end_date: "2024-09-07"
    goal: Crear schemas y tablas base
    epics: [EMR-001]
    sp_planned: 20
    sp_completed: 22
    migrations: [001, 002, 003, 004, 005]

  - number: 6
    start_date: "2024-09-08"
    end_date: "2024-09-14"
    goal: Migrar datos e índices
    epics: [EMR-001]
    sp_planned: 20
    sp_completed: 21
    migrations: [006, 007, 008]

  - number: 7
    start_date: "2024-09-15"
    end_date: "2024-09-21"
    goal: Funciones, triggers y RLS
    epics: [EMR-001]
    sp_planned: 20
    sp_completed: 21
    migrations: [009, 010, 011, 012]

  - number: 8
    start_date: "2024-09-22"
    end_date: "2024-09-30"
    goal: Optimización y deployment
    epics: [EMR-001]
    sp_planned: 20
    sp_completed: 21
    migrations: [013, 014, 015]

# ============================================================================
# EQUIPO
# ============================================================================

team:
  database:
    dba: 2
    focus: [migrations, optimization, security]

  backend:
    developers: 1
    focus: [query_updates, integration]

  qa:
    testers: 1
    focus: [data_validation, performance_testing]

# ============================================================================
# MÉTRICAS
# ============================================================================

metrics:
  planned:
    budget: 50000
    sp: 80
    duration_days: 30
    team_size: 4

  actual:
    budget: 52500
    sp: 85
    duration_days: 30
    migrations_executed: 15
    downtime_minutes: 0

  variance:
    budget_pct: +5
    sp_pct: +6
    time_pct: 0

  quality:
    data_integrity: 100
    zero_downtime: true
    performance_improvement: 65
    test_coverage: 18
    test_coverage_planned: 92
    test_coverage_gap: -74
    note: "ACTUALIZADO 2025-11-08: Coverage real muy inferior a objetivo"

  technical_debt:
    before: high
    after: low
    reduction: 70

# ============================================================================
# PERFORMANCE IMPROVEMENTS
# ============================================================================

performance:
  query_speed:
    average_before: 250ms
    average_after: 87ms
    improvement: 65%

  complex_joins:
    before: 1200ms
    after: 320ms
    improvement: 73%

  concurrent_connections:
    before: 50
    after: 200
    improvement: 300%

  throughput:
    before: 100 req/s
    after: 280 req/s
    improvement: 180%

# ============================================================================
# DATABASE OBJECTS
# ============================================================================

database_objects:
  schemas:
    before: 1
    after: 13
    created: 12

  tables:
    before: 44
    after: 62
    migrated: 44
    new: 18
    note: "ACTUALIZADO 2025-11-08: Fase 3 extensiones no completadas totalmente"

  indexes:
    before: 30
    after: 74
    created: 44
    note: "ACTUALIZADO 2025-11-08: Optimizaciones planificadas pendientes"

  functions:
    before: 8
    after: 61
    created: 53
    note: "ACTUALIZADO 2025-11-08: Más lógica en BD de lo planificado (MEJOR)"

  triggers:
    before: 5
    after: 39
    created: 34
    note: "ACTUALIZADO 2025-11-08: Más automatización implementada (MEJOR)"

  rls_policies:
    before: 0
    after: 24
    created: 24
    note: "ACTUALIZADO 2025-11-08: Cobertura parcial de seguridad"

# ============================================================================
# RIESGOS Y MITIGACIONES
# ============================================================================

risks:
  - risk: Data loss during migration
    probability: low
    impact: critical
    mitigation: Blue-green deployment + extensive backups
    outcome: No data loss

  - risk: Downtime during migration
    probability: medium
    impact: high
    mitigation: Blue-green strategy + live testing
    outcome: Zero downtime achieved

  - risk: Performance degradation
    probability: medium
    impact: high
    mitigation: Extensive benchmarking + strategic indexes
    outcome: 65% performance improvement

  - risk: Breaking changes in backend
    probability: medium
    impact: medium
    mitigation: Maintain API compatibility + extensive testing
    outcome: No breaking changes

# ============================================================================
# LESSONS LEARNED
# ============================================================================

lessons_learned:
  - lesson: Blue-green deployment crucial for zero downtime
    impact: critical
    note: Allowed seamless migration with instant rollback capability

  - lesson: Extensive testing prevents production issues
    impact: high
    note: "ACTUALIZADO 2025-11-08: Coverage objetivo era 92%, real fue 18%. Deployment exitoso gracias a pruebas manuales exhaustivas y validaciones de integridad de datos"

  - lesson: Modular schemas improve maintainability
    impact: high
    note: Changes now isolated to specific domains

  - lesson: Strategic indexes provide massive performance gains
    impact: high
    note: 65% improvement with well-planned indexes

  - lesson: RLS implementation early saves refactoring
    impact: medium
    note: Implementing security from start is easier than retrofitting

  - lesson: Comprehensive documentation saves debugging time
    impact: medium
    note: 6 technical docs reduced support requests by 80%

# ============================================================================
# NOTAS
# ============================================================================

notes:
  - Fase completada en tiempo (+0%) con ligero sobrepaso en presupuesto (+5%)
  - ZERO DOWNTIME achieved - usuarios no experimentaron interrupciones
  - Performance mejorado más de lo esperado (65% vs 50% objetivo)
  - 15 migraciones ejecutadas exitosamente
  - Todas reversibles con scripts de rollback
  - Data integrity 100% verificado
  - "ACTUALIZADO 2025-11-08: 24 políticas RLS implementadas (no 45 como se planificó)"
  - "ACTUALIZADO 2025-11-08: 61 funciones y 39 triggers creados (SUPERÓ objetivos de 28 y 18)"
  - "ACTUALIZADO 2025-11-08: 62 tablas totales (Fase 3 extensiones no completadas)"
  - "ACTUALIZADO 2025-11-08: Test coverage real 18% (objetivo era 92%)"
  - Sistema ahora enterprise-ready para escalabilidad