The Free On-line Dictionary of Computing (30 December 2018):

Schematik

   A NeXT front-end to MIT Scheme for the NeXT by Chris Kane
   and Max Hailperin .  Schematik provides
   syntax-knowledgeable text editing, graphics windows and a
   user-interface to an underlying MIT Scheme process.  It comes
   with MIT Scheme 7.1.3 ready to install on the NeXT and
   requires NEXTSTEP.

   Version: 1.1.5.2.

   USA FTP (ftp://ftp.gac.edu/pub/next/scheme/).  Germany
   (ftp://ftp.informatik.uni-muenchen.de/pub/next/ProgLang).

    E-mail: .

    (1993-03-11)