Resource Human-Centered Design User Experience + Product (UX)

U.S. Digital Service: UX Contract Principles

A set of contract-ready principles and requirements that define how vendors must deliver user-centered, accessible, and data-informed digital services.

Published Year: 2026

This document translates user-centered design best practices into concrete contractual requirements that vendors must follow when building digital services, including researching user needs, testing with real people, and documenting findings.

It requires teams to design end-to-end service experiences across online and offline touchpoints, prioritize simplicity and accessibility, and use plain language and consistent design patterns. The resource also mandates the use of real-time performance monitoring, user behavior analytics, and experimentation to continuously improve services and prioritize fixes based on evidence rather than assumptions.