Use the relevant training history, permitted project examples and the actual assignment description. Identify who can explain the relationship between them and what may require confidential handling.
Keep evidence proportionate to the claim
Ask the company which documents establish the material facts without unnecessary disclosure. Do not assume a large technical archive is more informative than a clear, supported example. Retain dates and explain the employee’s own contribution so a team project is not inaccurately presented as the work of one person.
Internal service manuals that differ from public documentation, engineering change notices, the warranty and failure database, training materials used only for dealers under contract, and any patents or confidentiality policies covering the designs. Attach the table of contents, the sections the employee authored with their revision history, and any passage that expressly leaves a decision to a qualified operator, together with a short statement explaining what each attachment proves. Keep one shared set of corporate exhibits and one individual folder per person holding duties, chronology, and knowledge evidence, and track versions, because the shared set will be updated while individual files are still in progress and mismatched corporate descriptions across a group are noticeable.