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ISO 28560-1:2023 — RFID in Libraries: Data Elements and Implementation Guidelines
The international standard for RFID data model in library applications — from item identification to privacy and migration strategies.
Introduction to ISO 28560-1
ISO 28560-1:2023 is the third edition of the foundational standard for RFID implementation in libraries, developed by ISO/TC 46/SC 4. It specifies data elements and general guidelines for RFID tags used in library operations — including item identification, circulation, inventory, security, and interlibrary loan processing. The standard ensures interoperability across different library systems and RFID vendor technologies worldwide. Since the first edition published in 2011, ISO 28560-1 has been adopted by thousands of libraries globally, enabling seamless resource sharing and automated materials handling.
ISO 28560-1 enables a library to implement RFID knowing that its data model will be compatible with international partners, regardless of which ISO 28560-compliant vendor supplies the hardware.
User Data Elements
The standard defines 31 user data element slots, each with specific semantics and encoding rules. Key elements include the primary item identifier (barcode or UID), owner institution identified by ISIL code per ISO 15511, shelf location, media format (using ONIX or MARC codes), set information for multi-volume works, and type of usage codes that determine circulation policies. The content parameter (the first data element) acts as a bitmask indicating which of the subsequent data elements are present on the tag, enabling readers to decode the tag content without prior knowledge of the encoding configuration.
| Data Element | Description | Mandatory |
|---|---|---|
| Primary item identifier | Unique barcode or identifier for the item | Yes |
| Owner institution (ISIL) | ISO 15511 library identifier code | Recommended |
| Content parameter | Indicates which data elements are present | Yes |
| Shelf location | Current shelving location code | Optional |
| Type of usage | Circulation category (standard, limited, reference, etc.) | Recommended |
| Set information | Volume/part information for multi-item sets | Optional |
| Title | Bibliographic title of the item | Optional |
| Supply chain stage | Indicates item state in acquisition process | Optional |
System Data Elements and Security
System data elements include the Application Family Identifier (AFI) for distinguishing library tags from other RFID applications, the Data Storage Format Identifier (DSFID), the unique tag ID (TID) burned into the chip at manufacture, and the Electronic Article Surveillance (EAS) bit for security gates. The standard provides tools for data integrity verification, including CRC checksums that protect against data corruption during read/write operations. The AFI byte is particularly important — it enables library readers to selectively respond only to library tags, ignoring tags from retail, logistics, or access control applications operating at the same frequency.
The AFI value is critical — if incorrectly programmed, a tag may be invisible to library readers or, worse, trigger security alarms in non-library RFID systems such as retail or logistics.
Privacy Considerations
ISO 28560-1 includes significant privacy guidance. Personally identifiable information about library patrons must never be stored on RFID tags. The standard recommends that tags contain only item-related data, with patron information maintained in the backend library system. Features such as EAS bit locking and data element-level write protection further enhance security. The standard also addresses concerns about clandestine scanning by recommending that tags be embedded in book spines rather than covers, and that the AFI value provide a first-level filter that non-library readers would not typically search for.
Engineering Design Insights
From an implementation perspective, the most critical design decision is the choice between the two encoding paradigms: the “ISO 28560-1 native” structured format versus simpler formats carried over from legacy systems. Migration between formats requires careful planning — the standard dedicates an entire clause to migration strategies, including use of intermediate tags that support dual-mode operation during transition periods. The structured format offers richer data capacity and better interoperability but requires more memory on the tag.
Regional and business profiles (Clause 7) allow libraries within a consortium or country to standardize on a subset of data elements, reducing tag costs and simplifying reader configuration. The Danish and Finnish regional profiles are cited as examples of successful large-scale implementations, each having standardized on specific subsets of the 31 data elements to meet local requirements while maintaining full ISO 28560-1 compatibility.
Frequently Asked Questions
Q: Can patron personal data be stored on the RFID tag?
A: No. The standard explicitly advises against storing personally identifiable information on RFID tags — only item-related data should be encoded.
A: No. The standard explicitly advises against storing personally identifiable information on RFID tags — only item-related data should be encoded.
Q: What is the AFI and why is it important?
A: The Application Family Identifier distinguishes library RFID tags from other applications. It prevents interference between library systems and retail, logistics, or access control systems operating at similar frequencies.
A: The Application Family Identifier distinguishes library RFID tags from other applications. It prevents interference between library systems and retail, logistics, or access control systems operating at similar frequencies.
Q: How does migration work between different RFID formats?
A: The standard supports staged migration, including the use of dual-mode tags that can be read by both old and new systems during transition. Complete retagging is not necessarily required.
A: The standard supports staged migration, including the use of dual-mode tags that can be read by both old and new systems during transition. Complete retagging is not necessarily required.
Q: What are regional profiles?
A: Regional profiles define a standardized subset of data elements and encoding rules for a specific country or consortium, ensuring interoperability among member libraries while reducing implementation complexity.
A: Regional profiles define a standardized subset of data elements and encoding rules for a specific country or consortium, ensuring interoperability among member libraries while reducing implementation complexity.
