Revalidate the changed version for the intended use: What is the decisive requirement before deployment?
A changed supplier model must be revalidated for the actual intended use because earlier evidence may no longer apply.
The question
A company procuring a vendor’s updated forecasting model learns that the model version changed, but receives no evidence that its prior validation still applies to the new version. What is the decisive requirement before deployment?
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- Deploy the update while collecting validation evidence afterward.Post-deployment monitoring is valuable, but unresolved evidence gaps should not be bypassed when predeployment evaluation is required.
- Accept the update under the supplier’s existing warranty.A warranty does not show that prior validation remains applicable to a changed model version or this procurement use case.
- Compare the vendor’s benchmark score with the previous version.A benchmark comparison may inform review, but it does not establish contextual suitability or cover all relevant risks.
- Revalidate the changed version for the intended use. ✓A changed model version requires evaluation in context, with evidence supporting reliability, limitations, and acceptance for the intended use.
The trap
A version change creates an evidence question; do not assume prior testing transfers automatically. How to remember it
A changed supplier model must be revalidated for the actual intended use because earlier evidence may no longer apply.
How many of these would you get right?
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