IEQ's working definition of quality is relative, not absolute. It views the following elements as essential. Quality is dynamic - a work in progress characterized by dialogue among policy makers and practitioners. Progress in outcomes related to teaching and learning must be set in measurable terms. IEQ offers a framework to stimulate dialogue.
Definitions vary because of the complexity of the issue.
There is unlikely to be an universally accepted definition. Stakeholders operationally prioritize elements of quality.