Dongwang / DDTCompare complete plans for the same buying objective to understand cost differences.
Define a comparable buying task
Before comparing two plans, hold requirements, quantities, destination and arrival arrangements constant. Differences in specifications, volumes or delivery terms can produce very different cost structures.
Bring five cost components together
A practical discussion framework is: product purchase cost + consolidation and packaging + transport + capital and inventory holding + expected exception handling. Actual calculations need evidence from the relevant buying task.
Higher quantities can improve unit prices and transport allocation while extending inventory holding. More merchants can enrich an assortment and lengthen collection time. Evaluate these effects within the same plan.
Bring the research back to the task
For Dongwang, research should help answer which items belong in an assortment, which conditions need coordination and which uncertainties need more information. AI supports ongoing organisation and comparison; the market supplies product and fulfilment constraints, and business feedback informs the next assessment.
This is a Dongwang methodological note. It uses no customer orders or supplier quotes and makes no claims of measured commercial performance.