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measurement

Direct ascertainment of data through careful scaling of the original object.

A measurement is a direct reading of data from the data's object itself, using a scaled measuring device. When done properly, it is the highest possible source for data and trumps all other sources. Citations for measurements should give a clear impression of how the measurement was taken and how it avoided possibilities for error.

Measurements taken visually, such as counting the floors or elevators in a building, are classified as personal observations and do not fall under this source type.

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personal observation

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Sources increase data credibility. Show default source

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Internal Comments

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Used as source for every field you change or enter.

Type of source

Date witnessed

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Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed

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Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed

You need to be signed in to do this.

Sources increase data credibility. Show default source

Select a structure to edit.

Enter source for whole object

Used as source for every field you change or enter.

Type of source

Date witnessed