**Re: Accuracy and Resolution in a Measurement System: What is the differences?**
My definitions (everybody has one...), with a few bonus definitions:

**Precision:** degree of “fineness” or resolution

Can be checked by Repeatability – the ability to duplicate the result

**Accuracy:** conformity to a standard

Checked against a standard

**Resolution (or Discrimination):**
-The amount of change from a reference value that an instrument can detect and faithfully indicate. This is also referred to as readability or resolution

-The measure of this ability is typically the value of the smallest graduation on the scale of the instrument. If the instrument has ‘coarse’ graduations, then a half-graduation can be used

-A general rule of thumb is the measuring instrument discrimination ought to be at least one-tenth of the range to be measured (10 to 1 rule), or one tenth of the process variation.

**ndc** (number of discriminate categories): an evaluation of the statistically significant discrimination

**Metrology** is the science of measurement; of mass, time and length (the primary quantities)

**Measurement **is the “language” of science

**Mensuration** is the branch of applied geometry that is concerned with finding the length of lines, areas of surfaces, and volumes of solids from simple data of lines and angles

**Types of Measurement Error**
Tool Error – inherent instrument error

Observational Error – error from the eye

Manipulative Error – error from the hand

Bias – unconscious influence causing error

For more measurement lingo:

Measurement System Analysis from MoreSteam