The Simulation Experiment Description Markup Language (SED-

Language (SED-ML) is a new community data standard to encode computational biology experiments in a computer-readable XML format. Its widespread adoption will require the development of software support to work with SED-ML files. Here, we describe a software tool, SED-ED, to view, edit, validate, and annotate SED-ML documents while shielding end-users from the underlying XML representation. SED-ED supports modellers who wish to create, understand and further develop a simulation description provided in SED-ML format. Availability and Implementation: SED-ED is available as a standalone Java application, as an Eclipse plug-in, and as an SBSI (www.sbsi.ed.ac.uk) plug-in, all under an MIT open-source license