Tool Qualification Strategies

#!/usr/bin/env python3
# Tool Confidence Level determination per ISO 26262 Part 8.11

def determine_tcl(tool_name, ti_level, td_level) -> str:
    """
    TI (Tool Impact): TI1=tool output not integrated in safety; TI2=tool output IS in safety item
    TD (Tool Error Detection): TD1=immediately detectable; TD2=not easily detectable; TD3=not detectable
    """
    if ti_level == 1:
        tcl = "TCL1"
    elif ti_level == 2 and td_level == 1:
        tcl = "TCL2"
    elif ti_level == 2 and td_level in [2, 3]:
        tcl = "TCL3"
    else:
        tcl = "Invalid"

    qualification_actions = {
        "TCL1": "No qualification needed. Document TI1 classification.",
        "TCL2": "Qualification by use: document tool usage history with zero safety failures.",
        "TCL3": "Full qualification required: vendor TQK or in-house validation suite.",
    }
    return tcl, qualification_actions.get(tcl, "")

tools = [
    ("IAR Compiler v9.30", 2, 3),    # TI2 (generates binary), TD3 (errors not detectable)
    ("Polyspace Bug Finder", 2, 2),  # TI2 (missed bugs affect safety), TD2 (false negative hard to detect)
    ("TESSY Unit Tester", 2, 2),     # TI2 (missed test = unverified req), TD2
    ("Git (version control)", 1, 1), # TI1 (no safety output), TD1
    ("Wireshark", 1, 1),             # TI1 (analysis only), TD1
]

for tool, ti, td in tools:
    tcl, action = determine_tcl(tool, ti, td)
    print(f"{tool}: TI{ti}, TD{td} → {tcl}")
    print(f"  Action: {action}")
    print()

#!/bin/bash
# Run IAR Compiler qualification kit (TQK) per ISO 26262
TOOL_VERSION="IAR_EWARM_9.30.1"
COMPILER_PATH="/opt/iar/ewarm_9.30/bin/iccarm"

# Step 1: Verify tool version matches qualified version
ACTUAL_VERSION=$($COMPILER_PATH --version | grep -oP 'V[0-9]+\.[0-9]+\.[0-9]+')
if [ "$ACTUAL_VERSION" != "V9.30.1" ]; then
    echo "FAIL: Tool version mismatch. Qualified V9.30.1, installed $ACTUAL_VERSION"
    exit 1
fi

# Step 2: Run TQK test suite (provided by IAR)
cd /opt/iar/tqk_iso26262/
./run_qualification_tests.sh --compiler "$COMPILER_PATH"     --output "qualification_results_${TOOL_VERSION}.html"

# Step 3: Check pass/fail
if grep -q "FAIL" qualification_results_${TOOL_VERSION}.html; then
    echo "FAIL: Qualification test failures found. Review report."
    exit 1
fi

echo "PASS: All TQK tests passed for $TOOL_VERSION"
cp qualification_results_${TOOL_VERSION}.html dms/tool_qualification/