Supply-chain resilience and sustainability
3 min read
Lesson objectives
- Apply Supply-chain resilience and sustainability to a bounded case and justify the result and its limits.
Map the critical item's chain from raw material to customer, identifying common failure points rather than merely counting supplier names. Two suppliers using one port are not independent when that port closes. Estimate each risk's likelihood from evidence and its effect on service days, quantity and cost, naming uncertainty; likelihood×impact is a screening aid, not a precise forecast. Separate prevention such as qualifying a source on another route from response such as changing freight when a trigger occurs.
A continuity plan names the trigger, latest decision time, communication owner and size of stock or alternate capacity. Exercise a supplier outage: how many days does released stock cover at actual consumption, when can qualified alternate stock clear inspection, and which orders slip? 'We have a plan' is not a test. Add measurable sustainability boundaries such as waste per good unit or shipping emissions per tonne-kilometer where credible data exist; fewer trips alone do not prove environmental improvement if spoilage or total distance rises.
After a drill, record disruption-detection time, switching-decision time and alternate-release time against service targets. If emissions or scrap data are missing, say what was and was not measured rather than inventing numbers. Service protection can conflict with high-impact premium freight; compare timed buffers, consolidated shipments and advance qualification within customer obligations. Do not let a local sustainability metric hide waste shifted to supplier manufacturing or product use.
Lesson summary
Four-day cover, shortage from day five, 100-unit gap through end day six, 100 prior buffer under release assumption; waste metric requires data.