  Explorables with interactive, multimodal content, openly available on the
web, are a promising medium for education. Yet authoring such explorables
requires web development expertise, excluding most educators and students from
the authoring and remixing process. Some tools are available to reduce this
barrier of entry and others are in development, making a method to evaluate
these new tools necessary. On the basis of the software quality model ISO
25010, empirical results, and domain modeling, we derive the Explorable
Authoring Requirements (EAR) as a requirements catalogue explorable authoring
tools should implement. We then outline a future research design to
operationalize EAR.
