Ubiquitous TRON Application Databus, or uTAD, is a data format that describes attributes of the real-world objects of ucodes in the following ways.

	uTAD is a standard data format for offering ubiquitous information services
•	Stored in ucode tags
•	Stored in product information servers
•	Standard data format for standard TRON browsers
	Format for expressing equivalent paired data
1.	XML-based semi-structured data format
•	XML tag set definitions to deal with real-world information
•	Expandable to deal with TRON multi-script text
•	Generally used when storing data on servers
2.	Format for expressing binary data (compressed expression format)
•	Used when storing data on low-capacity RFID tags