Explain the connection between the earlier work and the knowledge used in the proposed assignment, including what has changed.
Use a record with an explanation
Identify the date, applicant’s contribution and relevant process or product version. Preserve the original meaning of the record. If a document concerns a different system or team, explain the relevance instead of treating every technical record as equally supportive.
Contemporaneous internal records: design and configuration documents, change histories, authored training material, project files, and any registered intellectual property, together with the standard relationship and payroll evidence. Useful items include the system manual and its revision history, the crop recipe library with dates showing internal development, the calibration and validation procedures, incident and fault records demonstrating the reasoning applied, and training curricula showing the months required to bring a grower to competence.
Together they should show the vendor delivering a defined service, supervising and directing its own staff, and naming the vendor-side manager the specialist reports to, with the clinics receiving a product rather than an extra pair of hands.