secondary package (parcel). Packages containing one or more primary packages (see Figure 5.1). The number and layout of the distribution units need to be considered for the correct formation of the secondary packages. The constraints involve the ease of parcel handling within the warehouses and in the facilities to which the secondary packages are delivered.....
tertiary packages (pallets). The activity of receiving and storing load units in a warehouse typically involves the so called palletized load unit, using suitable bases (pallets), which are also used to identify the tertiary packages (see Figure 5.1).