Question and Test Interoperability (QTI) is a technical standard that facilitates the creation, exchange, and delivery of assessments, quizzes, and test items focused on learning outcomes, skills, and competencies across educational platforms. It incorporates a structured format to define diverse question types—such as multiple-choice, essays, or interactive tasks—along with scoring rules, feedback, and metadata, ensuring consistent performance in learning management systems (LMS) and assessment tools. QTI integrates support for Access For All and Personal Needs and Preferences, enabling personalized accessibility adjustments—like accommodations for visual, auditory, or motor impairments—aligned with individual learner needs and broader educational frameworks. Deployed heavily worldwide for high-stakes assessment scenarios, QTI ensures equitable access and fairness, allowing educators to align assessments with curriculum goals, share interoperable content, and effectively measure skill development in diverse, inclusive digital testing environments.