PHARMACEUTICAL RECORDKEEPING SYSTEM

A recordkeeping method comprises assigning serialized portable memory devices to individual lots of material and manufacturing process batches, writing identification and requirements data into the portable memory devices, writing manufacturing and test data into the portable memory devices during the process and writing the manufacturing and test data from one portable memory device into another by first reading the identification data from the both portable memory devices, comparing the identification data read from the two portable memory devices and writing the manufacturing and test data into the other portable memory device if the comparison is favorable.