The USI Certification program allows members to measure compliance and ensure interoperability with the USI Stylus and Device Specification. Companies completing certification may display the USI Certified logo to demonstrate to consumers, customers and partners that they have created a high‐quality, interoperable USI implementation that is known to work with other USI implementations.

The USI Stylus Certification Program has been developed with the organization’s core value proposition and brand promise in mind.

USI Brand Promise

A product bearing the USI Certification Mark will provide an experience that’s Personal, Predictable and Interoperable.

Personal

“My USI Stylus customizable in a variety of ways.”

This is achieved through the availability of products in multiple form-factors or industrial designs and/or the ability to customize and configure parameters such as ink color, stroke, etc. on a per-stylus basis.

Predictable

“I know I can except the same experience from my USI Stylus every time and everywhere I use it.”

This is achieved through consistent performance requirements across all USI Certified products.

Interoperable

“I know my USI Stylus is going to work on all of my devices.”

This is achieved through consistent electrical profile requirements across all USI Certified products.

Personal – “My USI Stylus customizable in a variety of ways.”

This is achieved through the availability of products in multiple form-factors or industrial designs and/or the ability to customize and configure parameters such as ink color, stroke, etc. on a per-stylus basis.

Predictable – “I know I can except the same experience from my USI Stylus every time and everywhere I use it.”

This is achieved through consistent performance requirements across all USI Certified products.

Interoperable – “I know my USI Stylus is going to work on all of my devices.”

This is achieved through consistent electrical profile requirements across all USI Certified products.

To ensure that products uphold this brand promise and the overall integrity of the USI brand, the Certification Program enables measurement of adherence to the technical specification in real products and provides reasonable measures of acceptability.

Products that pass this level of acceptability are added to the Certification Register and have the right to license the USI Certification Mark.

The USI Certification Program IS a high-level, functional test of a product’s performance and interoperability from an end-user perspective. The tests are designed to be representative of real-world use of a USI product.

The USI Certification Program IS NOT a replacement for thorough component or product validation by the manufacturer; it does not fully exercise the entire implementation of the technical specification, nor does it provide ‘bit-by-bit’ testing of each register, function, command, frequency/timeslot combination, corner-case scenario, etc. Furthermore, it does not test any proprietary, vendor-defined extensions.

For questions regarding the USI Certification program please contact the program manager.