Vendor scheduling of deliveries to JIT customers can be a non-trivial
problem, especially when supply and demand dates occur irregularly and
supply constraints exist. Nevertheless. buyers continuously evaluate
the performance of their suppliers and may terminate relationships wit
h those which they feel are not effectively supporting their JIT progr
am. This article provides the vendor with an optimal delivery scheduli
ng and serf-evaluation modal which is readily implemented on popular s
oftware. An example is provided to illustrate the application of the m
odel.