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+# Backend Detailed Flow for Auto Verification and Validation System
+
+## 1. Auto Verification Flow (Auto_verif.php)
+
+```
+verification_job() → for each order → re_process(orderDetailID)
+   |
+   ├── 1. check panic values (re_panic_value)
+   │      └── Compare with critical value limits
+   │
+   ├── 2. check pre-analytic requirements
+   │      └── Check specimen conditions, timing, etc.
+   │
+   ├── 3. check AMR range
+   │      └── Ensure result is within analytical measurement range
+   │
+   └── 4. perform trend analysis (uji_trend)
+          └── Compare with historical daily averages
+```
+
+## 2. Auto Validation Flow (Auto_valid.php)
+
+```
+validation_job() → for each order → re_process/calculate(orderDetailID)
+   |
+   ├── 1. check auto verification status
+   │      └── Only continue if verification is OK
+   │
+   ├── 2. check condition (low/normal/high)
+   │      └── Determine result classification
+   │
+   ├── 3. check review range (for non-normal results)
+   │      └── Verify if abnormal result is within acceptable limits
+   │
+   ├── 4. check inconsistencies (getInconsistensi)
+   │      └── Verify related test results are consistent
+   │
+   ├── 5. check delta check (get_delta_check_is_ok)
+   │      └── Compare with previous results
+   │
+   └── 6. check reflex tests (get_reflex_test_is_ok)
+          └── Verify additional tests required by the result
+```
+
+## 3. Critical Value Handling (Amr_limit.php)
+
+```
+auto_update() → for each order detail
+   |
+   ├── 1. check if result is numeric
+   │      └── Skip non-numeric results
+   │
+   ├── 2. get extreme low/high values
+   │      └── From nat_multirule table
+   │
+   ├── 3. compare with result
+   │      └── Check if result is outside limits
+   │
+   └── 4. insert critical value record if needed
+          └── For later notification and follow-up
+```
+
+## 4. Status Reporting (Auto_verif_valid.php)
+
+```
+status(orderHeaderID)
+   |
+   ├── 1. get verification status for all tests in order
+   │      └── From auto_verif or auto_verif_v2 tables
+   │
+   ├── 2. get validation status for all tests in order
+   │      └── From auto_valid or auto_valid_v2 tables
+   │
+   └── 3. return combined status for UI display
+          └── Showing which tests passed or failed verification/validation
+```
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