tool-qualificationlisted

# DO-330 Tool Qualification (avionics/do178c/tool-qualification) Use when the task is software tool qualification for a DO-178C program: mapping tool criteria to tool qualification levels, checking TQL rigor against requirements, and scoping the DO-330 qualification artifacts. ## Domain quick reference - DO-330 (Software Tool Qualification Considerations) defines the tool qualification process referenced by DO-178C section 12.2 for tool credit. - Tool criteria 1-5 map to TQL-1..TQL-5: criterion 1 (tool output part of the airborne software and not verified by another means) demands the highest rigor, TQL-1; criterion 5 (tool could fail to detect an error but its output is verified by another means) demands the lowest rigor, TQL-5. - Lower TQL numbers are stricter: TQL-1 satisfies a TQL-4 requirement; TQL-4 does not satisfy a TQL-1 requirement. - When several criteria apply, the highest criterion number is the governing one. - Key artifacts: tool operational requirements (TOR), qualification plan, and tool accomplishment summary. ## Workflow 1. Identify the applicable DO-330 tool criteria for the tool. 2. Map each criterion to its TQL and select the governing one. 3. Check the resulting TQL against the required rigor for the intended credit. 4. Confirm the TOR and qualification artifacts are complete. 5. Record the TQL and evidence in the tool qualification documents. ## Pitfalls - Treating TQL-5 as more rigorous than TQL-1 (reversed ordering). - Ign