  Graphical calculi such as the ZH-calculus are powerful tools in the study and
analysis of quantum processes, with links to other models of quantum
computation such as quantum circuits, measurement-based computing, etc.
  A somewhat compact but systematic way to describe a quantum process is
through the use of quantum multiple-valued decision diagrams (QMDDs), which
have already been used for the synthesis of quantum circuits as well as for
verification.
  We show in this paper how to turn a QMDD into an equivalent ZH-diagram, and
vice-versa, and show how reducing a QMDD translates in the ZH-Calculus, hence
allowing tools from one formalism to be used into the other.
