An ontology of clocks

Gary E. Miller gem at
Fri Feb 19 23:19:01 UTC 2016

Yo Daniel!

On Fri, 19 Feb 2016 18:12:52 -0500
Daniel Franke <dfoxfranke at> wrote:

> On 2/19/16, Gary E. Miller <gem at> wrote:
> > No, resolution is the smallest time increment a clock can represent.
> > Precision is a measure of the quality of the clock time.  
> I've seen "precision" used both ways by different authors, but I think
> you're right that resolution is a better choice of terminology because
> it avoids that ambiguity.

Yes, people get sloppy, but since we are on the ntpsec mailing list we
should prolly to stick to the NTP definitions.

According to

    "The smallest possible increase of time the clock model allows is
    called resolution."

    "Precision is the random uncertainty of a measured value, expressed
    by the standard deviation or by a multiple of the standard

    "Accuracy is the closeness of the agreement between the result of a
    measurement and a true value of the measurand."

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at  Tel:+1 541 382 8588
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