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Flowchart: Resupply configuration
IRT uses the following algorithm to determine when to ship drug units to depots and sites. This process is automated (after setup), but you can also create a manual order. For more information, see Definitions of resupply configuration settings.
Notes:
- The drug ordering feature does not run constantly, and therefore does not constantly check the quantity of drug units available at the site. It runs on a schedule and only checks the quantity at these scheduled times (typically once every 24 hours during the night, but the exact time is set during study design).
- If the drug unit inventory is not sufficient to cover the demand for Trigger Weeks (TW) plus Min Buffer (MinB) for a particular type, an order is created to bring the quantity of drug units of that type to be equal to the total quantity needed as determined by the Resupply Weeks (RW) and Max Buffer (MaxB).
