|
Type of Code |
Typical Application |
Characteristics and
Limitations |
| UPC (static
only) |
Retail and food
pricing and inventory control |
• Self-checking
• Fixed length
• Numeric only
• Reads bars and spaces
• Check digit is standard |
| Code 3 of 9 |
Part identification
(e.g., automotive, pharmaceutical, airlines) |
• Alphanumeric
• Reads bars only
• Variable length
• Check digit available
• High-reliability scanning
• Low-to-medium information density |
| Interleaved 2
of 5 |
Inventory control
and warehousing (e.g., air transport, electronics, automotive) |
• Self-checking
• Numeric only
• Variable length
• Must have even number of digits
• Reads bars and spaces
• Check digit available
• High-reliability scanning
• Requires accurate printing |
| Codabar |
Tracking and tracing
(e.g., shipping companies, libraries, photo labs) |
• Reads bars only
• No check digit
• Numeric only scanning
• Requires accurate printing
• Requires large bar code area
• Large size for remote scanning |
| Code 128 |
Sophisticated
tracking and tracing (e.g., healthcare industry, membership
organizations, libraries) |
• Alphanumeric
• Variable length
• Complex coding can lead to data entry errors
• Highest information density
• Reads bars and spaces
• Check digit available |