MaxiCode is a public domain, machine-readable symbol system originally created and used by United Parcel Service. Suitable for tracking and managing the shipment of packages, it resembles a barcode, but uses dots arranged in a hexagonal grid instead of bars. MaxiCode has been standardised under ISO/IEC 16023. 

A MaxiCode symbol (internally called "Bird's Eye", "Target", "dense code", or "UPS code") appears as a 1 inch square, with a bullseye in the middle, surrounded by a pattern of hexagonal dots. It can store about 93 characters of information, and up to 8 MaxiCode symbols can be chained together to convey more data. The centered symmetrical bullseye is useful in automatic symbol location regardless of orientation, and it allows MaxiCode symbols to be scanned even on a package traveling rapidly. 

MaxiCode symbology was released by UPS in 1992. 

MaxiCode symbols using modes 2 and 3 include a "Structured Carrier Message" containing key information about a package. This information is protected with a strong Reed-Solomon error correction code, allowing it to be read even if a portion of the symbol is damaged. These fields include: 

The structured portion of the message is stored in the inner area of the symbol, near the bull's-eye pattern. (In modes that do not include a structured portion, the inner area simply stores the beginning of the message.) QUESTIONS:

Q1:
1. What system does MaxiCode look similar to?
2. What does MaxiCode look like?
3. What familiar symbol does a MaxiCode resemble?
Q2:
1. What symbol does MaxiCode use instead of bars?
2. What is used on a MaxiCode grid instead of bars?
3. What replaces bars on the hexagonal MaxiCode grid?
Q3:
1. Who created MaxiCode?
2. Who were the developers of MaxiCode?
3. Who was responsible for creating MaxiCode?
Q4:
1. What is the primary purpose of MaxiCode?
2. What did UPS develop MaxiCode to do?
3. How do services like UPS use MaxiCode?
Q5:
1. What is another name for the MaxiCode symbols?
2. How are MaxiCode symbols referred to internally?
3. What's another term for the MaxiCode symbols?
Q6:
1. How big are the MaxiCode symbols?
2. What is the size of a MaxiCode symbol?
3. How large are the symbols MaxiCode uses?
Q7:
1. What is in the middle of a MaxiCode symbol?
2. What is at the center of a MaxiCode symbol?
3. What can be found in the center of a MaxiCode symbol?
Q8:
1. Is it possible to hook MaxiCode symbols together?
2. Can MaxiCode symbols be chained together?
3. Can the MaxiCode symbols be linked up to one another?
Q9:
1. What is the purpose of chaining MaxiCode symbols to one another?
2. What is the function of hooking up the MaxiCode symbols together?
3. What happens when MaxiCode symbols are linked up?
Q10:
1. How much can a MaxiCode symbol store?
2. What is the storage capacity of a MaxiCode symbol?
3. A MaxiCode symbol can hold up to what exactly?
Q11:
1. Up to how many MaxiCode symbols can be hooked together?
2. How many MaxiCode symbols can be chained together at a time?
3. What number of MaxiCode symbols is it possible to link together at once?
Q12:
1. On what part of a symbol are messages stored?
2. Where on the symbols are messages stored?
3. Where on the symbol can messages be found?
Q13:
1. Where do the symbols store the structured portion of a message?
2. Where is the structured portion of a message stored on the symbols?
3. What is the location on the symbol of the structured portion of a message?
Q14:
1. Maxicode symbols using what mode include structured messages?
2. Which modes of MaxiCode symbols carry structured messages?
3. What modes of MaxiCode symbol are needed to support structured messages?
Q15:
1. Is the information on MaxiCode symbols protected?
2. Is there protection from error and damage on the maxicode symbols?
3. Are the maxicode symbols secure?
Q16:
1. What protects information on the MaxiCode symbols?
2. How is information on the MaxiCode symbols kept safe?
3. What is the system used to protect informaiton on MaxiCode symbols?
Q17:
1. Is it possible to read the maxicode symbols if they're damaged?
2. Do MaxiCode symbols remain readable when damaged?
3. Is it possible to recover data from the MaxiCode symbols even in the event of damage?
Q18:
1. What information do Structured Carrier Messages contain?
2. What is located on a Structured Carrier Message?
3. What kind of information is stored in a Structured Carrier Message?
Q19:
1. In what year did the MaxiCode system come out?
2. When did UPS release the maxicode system?
3. What year did UPS come out with MaxiCode?
Q20:
1. Is MaxiCode in the public domain?
2. Is MaxiCode a part of the public domain?
3. Is MaxiCode a public domain system?
