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CISM study material · question 694 of 1000

Why does NIST emphasise keeping metrics consistent over time?

  1. Consistency reduces the cost of collection
  2. Consistency is what allows long-term trends and expected ranges to be evaluated
  3. Consistency is required for regulatory reporting
  4. Consistency allows the metrics to be compared directly with those published by other organisations
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Answer: B. Consistency is what allows long-term trends and expected ranges to be evaluated

SP 800-55v1 states that by keeping metrics consistent over time, organisations can evaluate long-term trends and expected ranges, and that tracking measurements over a continuous period gives more information about the success of plans, policies and goals.

Source: NIST SP 800-55 Vol. 1 (NIST) — Sec. 2.4 Metrics

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