STAGE 1: Write the requirement
Concept: Mandatory criteria should not be traded away by scoring.
Task: Specify quantity, connection type, delivery deadline and acceptance tests.
Acceptance: Identify pass/fail requirements separately from preferences.

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STAGE 2: Compare total cost
Concept: The cheapest unit price may not yield the lowest landed cost.
Task: Calculate purchase plus shipping cost for each supplier using the sample quantities.
Acceptance: Keep tax assumptions explicit and use one currency.

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STAGE 3: Evaluate delivery risk
Concept: A score is only as reliable as its evidence.
Task: Build a weighted evaluation with evidence notes and a sensitivity check.
Acceptance: Explain how a supplier with a missed mandatory deadline is treated.

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STAGE 4: Recommend and monitor
Concept: Award decisions need a record and an acceptance process.
Task: Draft the recommendation and incoming-inspection checklist.
Acceptance: Show the approval role and a contingency if delivery slips.

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