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The single greatest determinant of colour matching accuracy is

  • A.the quality and currency of the calibration database
  • B.the sheer speed of the computer that runs the software
  • C.the number of colourants held in the database
  • D.the brand of spectrophotometer used

Answer: A

Correct answer: the quality and currency of the calibration database

Everything the system predicts is derived from the database, so a database built carelessly or left to age will give confident predictions that are simply wrong. Instrument brand, computer speed and the sheer number of colourants held all matter far less than whether the calibration still describes the dyes and substrate in use.

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