Trace — a thing, not a batch

A serial answers what is inside it and what went into it. A lot answers where it went - as packages a warehouse can pull, not a list of ten thousand bottles.

Unit

Material — Status — Order — Made on — Packed into — Produced —

and everything inside

Contains

What went into it

Lot	Material	Units carrying it	Basis

Lot

Material — Units carrying it — Packages to hold —

Package	Material	Status	Units inside carrying the lot

Produce identified units

unit /trace/units/{serial} · components /trace/units/{serial}/trace · lot /trace/where-used/{lot} · produce /trace/units · pack /trace/units/pack · status /trace/units/{serial}/status