black art

from WordNet (r) 3.0 (2006)
black art
    n 1: the belief in magical spells that harness occult forces or
         evil spirits to produce unnatural effects in the world
         [syn: {sorcery}, {black magic}, {black art}, {necromancy}]
    
from The Collaborative International Dictionary of English v.0.48
Black art \Black" art`\
   The art practiced by conjurers and witches; necromancy;
   conjuration; magic.
   [1913 Webster]

   Note: This name was given in the Middle Ages to necromancy,
         under the idea that the latter term was derived from
         niger black, instead of nekro`s, a dead person, and
         mantei`a, divination. --Wright.
         [1913 Webster]
    
from Jargon File (4.4.4, 14 Aug 2003)
black art
 n.

   [common] A collection of arcane, unpublished, and (by implication)
   mostly ad-hoc techniques developed for a particular application or
   systems area (compare {black magic}). VLSI design and compiler code
   optimization were (in their beginnings) considered classic examples of
   black art; as theory developed they became {deep magic}, and once
   standard textbooks had been written, became merely {heavy wizardry}.
   The huge proliferation of formal and informal channels for spreading
   around new computer-related technologies during the last twenty years
   has made both the term black art and what it describes less common
   than formerly. See also {voodoo programming}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
black art

   A collection of arcane, unpublished, and (by implication)
   mostly ad-hoc techniques developed for a particular
   application or systems area (compare {black magic}).  VLSI
   design and compiler code optimisation were (in their
   beginnings) considered classic examples of black art; as
   theory developed they became {deep magic}, and once standard
   textbooks had been written, became merely {heavy wizardry}.
   The huge proliferation of formal and informal channels for
   spreading around new computer-related technologies during the
   last twenty years has made both the term "black art" and what
   it describes less common than formerly.  See also {voodoo
   programming}.

   [{Jargon File}]
    

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