BENEFITS TO THE READER

Just as a driver wants to find the brake pedal at the same location in every car, a reader of research documents wants a few standard commands to explore the scientific contents of any electronic document. The ReDoc rules offer four such standard commands:

• make burn removes the result files such as the postscript and gif version of a computed figure.
• make build recomputes the result files. It compiles the necessary programs, correctly invokes a sequence of executables, and finally stores the results in predefined files.
• make tube updates the result files, if necessary, and displays them using the appropriate viewer, such as ghostview for a postscript figure, or the standard cat UNIX program for an ASCII file.
• make clean removes all the intermediate files that were created during the execution of the build command. It leaves the result and source files intact.

Consistent standard commands to remove and reproduce a document's result files not only help a reader access and study an unknown document, but also enable an author maintain his own software. A reproducible document is a research and software filing system. Authors document their scientific computations in the article and preserve the computational details in fully functional examples. The standardized commands of the ReDoc reader interface allow authors to easily test their archived research software by occasionally removing and regenerating the document's results. A community can even develop automatic scripts to verify any document's completeness and reproducibility before its publication (see Figure 2). Publishers may envision that an electronic scientific journal could be refereed by testing the reproducibility of its illustrations.