Why not use manual data recording methods (paper and clipboards)?
Keystroke data entry errors
Generate back-office paperwork.
What are the limitations of barcode?
Tag size. Not suitable for extremely tiny items or tag dimensions.
Scan angle. Barcodes require line-of-sight scanning, without obstructions.
Tag orientation. Barcodes require line-of-sight scanning. You cannot read them through objects, paint, mud or dirt.
Harsh environments. Barcodes can be scratched, scuffed, or corroded. Abrasion and direct impacts deface barcodes
Bright sunlight and reflective surfaces