The principal (only?) “product” of this project.

• An “XML application”, a set of elements, attributes and their relationships

• Easy for an author to comprehend

• Very few attributes, none obtuse

• No presentation. Really

• Easy cross-references: xml:id="a-label" and <xref ref="a-label">

• \(\LaTeX\) syntax for mathematics (no attempt to be semantic here)

• Define \(\LaTeX\) convenience macros once (e.g. for notation)

• Minimal escaped characters: & generally, \lt, \gt, &amp; in math

• Designed for authors, not archivists. Practical