BREF: BRowser-based Evaluation Framework.

In this demo we present BREF, a lightweight BRowser-based Evaluation Framework for easily conducting large-scale visualization-based evaluations of interaction tasks running in web browsers. BREF offers great flexibility to create, manage, and analyze single or multiple evaluations. Built-in assistants simplify and reduce the management workload for a large number of participants, tasks, and complementary questionnaires. Subjects can easily participate after logging in on any browser without the need of installing additional software.