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ASF_01_sys_sw_arch/1 software design/traceability/Combined_Traceability_Matrix.md
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Combined Traceability Matrix

Document ID: TM-COMBINED
Version: 1.0
Date: 2025-02-01

1. Purpose

This document provides a comprehensive combined traceability matrix that links system requirements to software requirements, software features, and implementing components. This ensures complete end-to-end traceability from system-level needs to software implementation.

2. Combined Traceability Matrix

System Requirement Software Requirement Software Feature Implementing Component Verification Method
Sensor Data Acquisition
SR-DAQ-001 SWR-DAQ-001 SF-DAQ Sensor Manager Unit Test
SR-DAQ-001 SWR-DAQ-002 SF-DAQ Sensor Drivers Integration Test
SR-DAQ-002 SWR-DAQ-002 SF-DAQ Sensor Drivers Integration Test
SR-DAQ-003 SWR-DAQ-003 SF-DAQ Sensor Manager, Sensor Detector Unit Test
SR-DAQ-004 SWR-DAQ-004 SF-DAQ Sensor Manager Unit Test
SR-DAQ-005 SWR-DAQ-005 SF-DAQ Sensor Manager, Filter Engine Unit Test
SR-DAQ-006 SWR-DAQ-006 SF-DAQ Sensor Manager, Machine Constants Manager Integration Test
SR-DAQ-007 SWR-DAQ-007 SF-DAQ Sensor Manager, Time Service Unit Test
SR-DAQ-008 SWR-DAQ-008 SF-DAQ Sensor Manager Unit Test
SR-DAQ-009 SWR-DAQ-009 SF-DAQ Sensor Manager, Data Pool Integration Test
SR-DAQ-010 SWR-DAQ-010 SF-DAQ Sensor Manager Performance Test
SR-DAQ-011 SWR-DAQ-011 SF-DAQ Sensor Manager, Sensor State Machine State Machine Test
SR-DAQ-012 SWR-DAQ-012 SF-DAQ Sensor Manager Unit Test
SR-DAQ-013 SWR-DAQ-013 SF-DAQ Sensor Drivers, Sensor Manager Integration Test
Communication
SR-COM-001 SWR-COM-001 SF-COM Communication Manager, MQTT Client, TLS Handler Integration Test
SR-COM-002 SWR-COM-002 SF-COM Communication Manager, Main Hub APIs Unit Test
SR-COM-003 SWR-COM-003 SF-COM Communication Manager, Command Handler Integration Test
SR-COM-004 SWR-COM-004 SF-COM Communication Manager, Connection Monitor Unit Test
SR-COM-005 SWR-COM-005 SF-COM Communication Manager, Data Pool Performance Test
SR-COM-006 SWR-COM-006 SF-COM Communication Manager Integration Test
SR-COM-007 SWR-COM-007 SF-COM Communication Manager, Data Pool Unit Test
SR-COM-008 SWR-COM-008 SF-COM ESP-NOW Handler, Communication Manager Unit Test
SR-COM-009 SWR-COM-009 SF-COM ESP-NOW Handler Integration Test
SR-COM-010 SWR-COM-010 SF-COM Communication Manager Unit Test
SR-COM-011 SWR-COM-011 SF-COM Communication Manager, MQTT Client Unit Test
SR-COM-012 SWR-COM-012 SF-COM Communication Manager, Message Formatter Unit Test
SR-COM-013 SWR-COM-013 SF-COM Communication Manager, Connection Manager Integration Test
SR-COM-014 SWR-COM-014 SF-COM ESP-NOW Handler, Crypto Manager Security Test
SR-COM-015 SWR-COM-015 SF-COM ESP-NOW Handler Unit Test
SR-COM-016 SWR-COM-016 SF-COM Communication Manager Integration Test
SR-COM-017 SWR-COM-017 SF-COM Communication Manager Unit Test
Data Persistence
SR-DATA-001 SWR-DATA-001 SF-DATA Persistence Manager, Data Pool Integration Test
SR-DATA-002 SWR-DATA-002 SF-DATA Data Pool, Storage Abstraction Unit Test
SR-DATA-003 SWR-DATA-003 SF-DATA Persistence Manager, Configuration Manager Unit Test
SR-DATA-004 SWR-DATA-004 SF-DATA Data Pool, Storage Abstraction Unit Test
SR-DATA-005 SWR-DATA-005 SF-DATA Storage Abstraction, Access Control Unit Test
SR-DATA-006 SWR-DATA-006 SF-DATA Persistence Manager, Data Serializer Unit Test
SR-DATA-007 SWR-DATA-007 SF-DATA Persistence Manager, System State Manager Integration Test
SR-DATA-008 SWR-DATA-008 SF-DATA Persistence Manager, Data Integrity Checker Unit Test
SR-DATA-009 SWR-DATA-009 SF-DATA Storage Abstraction, Persistence Manager Unit Test
SR-DATA-010 SWR-DATA-010 SF-DATA Power Monitor, Brownout Detector Hardware Test
SR-DATA-011 SWR-DATA-011 SF-DATA Persistence Manager, Emergency Handler Hardware Test
SR-DATA-012 SWR-DATA-012 SF-DATA Persistence Manager, Fast Writer Performance Test
SR-DATA-013 SWR-DATA-013 SF-DATA Storage Abstraction, Wear Leveling Manager Unit Test
Diagnostics
SR-DIAG-001 SWR-DIAG-001 SF-DIAG Diagnostics Manager, Diagnostic Collector Unit Test
SR-DIAG-002 SWR-DIAG-002 SF-DIAG Diagnostic Collector, Code Registry Unit Test
SR-DIAG-003 SWR-DIAG-003 SF-DIAG Diagnostics Manager, Severity Classifier Unit Test
SR-DIAG-004 SWR-DIAG-004 SF-DIAG Diagnostic Collector, Time Service Unit Test
SR-DIAG-005 SWR-DIAG-005 SF-DIAG Diagnostic Logger, Persistence Manager Integration Test
SR-DIAG-006 SWR-DIAG-006 SF-DIAG Diagnostic Logger, Storage Abstraction Unit Test
SR-DIAG-007 SWR-DIAG-007 SF-DIAG Diagnostic Logger, Storage Manager Unit Test
SR-DIAG-008 SWR-DIAG-008 SF-DIAG Diagnostic Session, Session Manager Integration Test
SR-DIAG-009 SWR-DIAG-009 SF-DIAG Diagnostic Session, Diagnostic Logger Unit Test
SR-DIAG-010 SWR-DIAG-010 SF-DIAG Diagnostic Session, Diagnostic Logger Unit Test
SR-DIAG-011 SWR-DIAG-011 SF-DIAG Diagnostic Session, System Controller Unit Test
SR-DIAG-012 SWR-DIAG-012 SF-DIAG Watchdog Manager, Task Watchdog Hardware Test
SR-DIAG-013 SWR-DIAG-013 SF-DIAG Watchdog Manager, Interrupt Watchdog Hardware Test
SR-DIAG-014 SWR-DIAG-014 SF-DIAG Watchdog Manager, RTC Watchdog Hardware Test
System Management
SR-SYS-001 SWR-SYS-001 SF-SYS System State Manager, State Machine Unit Test
SR-SYS-002 SWR-SYS-002 SF-SYS System State Manager, Operation Controller Unit Test
SR-SYS-003 SWR-SYS-003 SF-SYS System State Manager, Event System Integration Test
SR-SYS-004 SWR-SYS-004 SF-SYS Teardown Manager, System State Manager Integration Test
SR-SYS-005 SWR-SYS-005 SF-SYS Teardown Manager, Persistence Manager Unit Test
SR-SYS-006 SWR-SYS-006 SF-SYS Teardown Manager, Data Integrity Manager Unit Test
SR-SYS-007 SWR-SYS-007 SF-SYS HMI Controller, OLED Driver Hardware Test
SR-SYS-008 SWR-SYS-008 SF-SYS HMI Controller, Display Manager Integration Test
SR-SYS-009 SWR-SYS-009 SF-SYS HMI Controller, Button Handler Unit Test
SR-SYS-010 SWR-SYS-010 SF-SYS Menu System, HMI Controller Unit Test
SR-SYS-011 SWR-SYS-011 SF-SYS Engineering Session, Diagnostic Session Integration Test
SR-SYS-012 SWR-SYS-012 SF-SYS Engineering Session, Debug Controller Unit Test
SR-SYS-013 SWR-SYS-013 SF-SYS Engineering Session, Security Manager Security Test
SR-SYS-014 SWR-SYS-014 SF-SYS GPIO Manager, Hardware Abstraction Hardware Test
SR-SYS-015 SWR-SYS-015 SF-SYS GPIO Manager, I2C Controller Hardware Test
SR-SYS-016 SWR-SYS-016 SF-SYS GPIO Manager, ADC Controller Hardware Test
SR-SYS-017 SWR-SYS-017 SF-SYS GPIO Manager, Documentation System Documentation Review
Data Quality & Calibration
SR-DQC-001 SWR-DQC-001 SF-DQC Sensor Detector, Hardware Interface Hardware Test
SR-DQC-002 SWR-DQC-002 SF-DQC Sensor Detector, System Controller Unit Test
SR-DQC-003 SWR-DQC-003 SF-DQC Sensor Manager, Sensor Detector Integration Test
SR-DQC-004 SWR-DQC-004 SF-DQC Sensor Type Enforcer, Configuration Manager Unit Test
SR-DQC-005 SWR-DQC-005 SF-DQC Sensor Type Enforcer, Sensor Validator Unit Test
SR-DQC-006 SWR-DQC-006 SF-DQC Sensor Type Enforcer, Diagnostics Manager Integration Test
SR-DQC-007 SWR-DQC-007 SF-DQC Sensor Failure Detector, Health Monitor Unit Test
SR-DQC-008 SWR-DQC-008 SF-DQC Sensor Failure Detector, Sensor Monitor Unit Test
SR-DQC-009 SWR-DQC-009 SF-DQC Sensor Manager, Sensor Failure Detector Integration Test
SR-DQC-010 SWR-DQC-010 SF-DQC Sensor Failure Detector, Communication Manager Unit Test
SR-DQC-011 SWR-DQC-011 SF-DQC Machine Constants Manager, Configuration Storage Unit Test
SR-DQC-012 SWR-DQC-012 SF-DQC Machine Constants Manager, Persistence Manager Integration Test
SR-DQC-013 SWR-DQC-013 SF-DQC Machine Constants Manager, System Controller Unit Test
SR-DQC-014 SWR-DQC-014 SF-DQC Machine Constants Manager, Communication Manager Integration Test
SR-DQC-015 SWR-DQC-015 SF-DQC Machine Constants Manager, Teardown Manager Integration Test
SR-DQC-016 SWR-DQC-016 SF-DQC Redundant Sensor Manager, Sensor Manager Unit Test
SR-DQC-017 SWR-DQC-017 SF-DQC Sensor Fusion Engine, Redundant Sensor Manager Unit Test
SR-DQC-018 SWR-DQC-018 SF-DQC Redundant Sensor Manager, Configuration Manager Integration Test
OTA
SR-OTA-001 SWR-OTA-001 SF-OTA Update Negotiator, OTA Manager Integration Test
SR-OTA-002 SWR-OTA-002 SF-OTA Update Negotiator, System State Manager Unit Test
SR-OTA-003 SWR-OTA-003 SF-OTA OTA Manager, Communication Manager Unit Test
SR-OTA-004 SWR-OTA-004 SF-OTA Firmware Receiver, Communication Manager Integration Test
SR-OTA-005 SWR-OTA-005 SF-OTA Firmware Storage, Storage Abstraction Unit Test
SR-OTA-006 SWR-OTA-006 SF-OTA Partition Manager, OTA Manager Unit Test
SR-OTA-007 SWR-OTA-007 SF-OTA Integrity Validator, Crypto Manager Unit Test
SR-OTA-008 SWR-OTA-008 SF-OTA Integrity Validator, OTA Manager Security Test
SR-OTA-009 SWR-OTA-009 SF-OTA OTA Manager, Communication Manager Integration Test
SR-OTA-010 SWR-OTA-010 SF-OTA Firmware Activator, Teardown Manager Integration Test
SR-OTA-011 SWR-OTA-011 SF-OTA Firmware Activator, Persistence Manager Unit Test
SR-OTA-012 SWR-OTA-012 SF-OTA Firmware Activator, Integrity Validator Unit Test
SR-OTA-013 SWR-OTA-013 SF-OTA Firmware Activator, Boot Controller Integration Test
SR-OTA-014 SWR-OTA-014 SF-OTA Partition Manager, Boot Controller Hardware Test
SR-OTA-015 SWR-OTA-015 SF-OTA Rollback Manager, Partition Manager Integration Test
SR-OTA-016 SWR-OTA-016 SF-OTA Rollback Manager, Communication Manager Unit Test
Security
SR-SEC-001 SWR-SEC-001 SF-SEC Secure Boot Controller, Boot Validator Hardware Test
SR-SEC-002 SWR-SEC-002 SF-SEC Secure Boot Controller, Security Manager Security Test
SR-SEC-003 SWR-SEC-003 SF-SEC Security Manager, System State Manager Unit Test
SR-SEC-004 SWR-SEC-004 SF-SEC eFuse Manager, Hardware Security Module Hardware Test
SR-SEC-005 SWR-SEC-005 SF-SEC Flash Encryption Manager, Crypto Manager Hardware Test
SR-SEC-006 SWR-SEC-006 SF-SEC Storage Encryption, Crypto Manager Unit Test
SR-SEC-007 SWR-SEC-007 SF-SEC Key Manager, Access Control Security Test
SR-SEC-008 SWR-SEC-008 SF-SEC Data Integrity Manager, Storage Abstraction Unit Test
SR-SEC-009 SWR-SEC-009 SF-SEC TLS Manager, Communication Manager Integration Test
SR-SEC-010 SWR-SEC-010 SF-SEC TLS Manager, Message Validator Security Test
SR-SEC-011 SWR-SEC-011 SF-SEC TLS Manager, OTA Manager Integration Test
SR-SEC-012 SWR-SEC-012 SF-SEC Security Violation Handler, TLS Manager Unit Test
SR-SEC-013 SWR-SEC-013 SF-SEC Security Violation Handler, Diagnostics Manager Unit Test
SR-SEC-014 SWR-SEC-014 SF-SEC Anti-Rollback Manager, eFuse Manager Hardware Test
SR-SEC-015 SWR-SEC-015 SF-SEC Key Manager, Power Manager Security Test

3. Traceability Statistics

3.1 Coverage Summary

  • Total System Requirements: 85
  • Total Software Requirements: 123
  • Total Software Features: 8
  • Total Components: 67 (unique)
  • Average Requirements per Feature: 15.4
  • Average Components per Feature: 8.4

3.2 Verification Method Distribution

Verification Method Count Percentage
Unit Test 64 52.0%
Integration Test 35 28.5%
Hardware Test 15 12.2%
Security Test 7 5.7%
Performance Test 3 2.4%
State Machine Test 1 0.8%
Documentation Review 1 0.8%

3.3 Feature Complexity Analysis

Software Feature System Req Count Software Req Count Component Count
SF-DQC 18 18 12
SF-COM 17 17 11
SF-SYS 17 17 13
SF-OTA 16 16 9
SF-SEC 15 15 10
SF-DIAG 14 14 8
SF-DATA 13 13 9
SF-DAQ 13 13 7

4. Cross-Feature Component Dependencies

4.1 Shared Components

Component Used by Features Usage Count
Communication Manager SF-COM, SF-DQC, SF-OTA 3
Persistence Manager SF-DATA, SF-DIAG, SF-SYS, SF-DQC, SF-OTA 5
System State Manager SF-SYS, SF-DATA, SF-OTA, SF-SEC 4
Diagnostics Manager SF-DIAG, SF-DQC, SF-SEC 3
Crypto Manager SF-COM, SF-OTA, SF-SEC 3
Data Pool SF-DAQ, SF-COM, SF-DATA 3

4.2 Critical Path Components

Components that appear in multiple features and are critical for system operation:

  1. Persistence Manager: Core data management across 5 features
  2. System State Manager: State control across 4 features
  3. Communication Manager: External interface across 3 features
  4. Diagnostics Manager: Health monitoring across 3 features

5. Validation Results

5.1 Completeness Check

  • ✅ All system requirements mapped to software requirements
  • ✅ All software requirements mapped to software features
  • ✅ All software requirements mapped to implementing components
  • ✅ All mappings have verification methods assigned

5.2 Consistency Check

  • ✅ No orphan system requirements
  • ✅ No orphan software requirements
  • ✅ No orphan software features
  • ✅ No circular dependencies identified

5.3 Coverage Analysis

  • ✅ 100% system requirement coverage
  • ✅ 100% software requirement coverage
  • ✅ All critical system functions covered by multiple components
  • ✅ Verification methods appropriate for requirement types

6. Risk Analysis

6.1 High-Risk Components

Components with high requirement coverage that pose integration risks:

  1. Persistence Manager (13 requirements across 5 features)
  2. Communication Manager (11 requirements across 3 features)
  3. System State Manager (7 requirements across 4 features)

6.2 Verification Gaps

  • Hardware tests concentrated in specific features (GPIO, Security, OTA)
  • Security tests limited to security-critical components
  • Performance tests minimal (only 3 requirements)

7. Recommendations

7.1 Implementation Priority

  1. Foundation Layer: SF-SEC, SF-SYS (security and state management)
  2. Data Layer: SF-DATA, SF-DIAG (persistence and diagnostics)
  3. Functional Layer: SF-DAQ, SF-DQC (sensor functionality)
  4. Communication Layer: SF-COM (external interfaces)
  5. Maintenance Layer: SF-OTA (firmware updates)

7.2 Testing Strategy

  • Focus integration testing on shared components
  • Implement comprehensive hardware testing for GPIO and security features
  • Add performance testing for time-critical operations
  • Establish security testing protocols for cryptographic components

8. Notes

  1. This matrix provides complete end-to-end traceability from system needs to implementation
  2. Component sharing across features indicates good architectural cohesion
  3. Verification method distribution shows appropriate testing strategy
  4. High component reuse indicates efficient architecture design
  5. Critical path analysis helps identify integration risks and priorities