observation vs measuring

observation and measuring both are nouns.

Word	Noun	Adjective	Verb	Adverb
observation	Yes	No	No	No
measuring	Yes	No	No	No

As nouns, measuring is a hypernym of observation; that is, measuring is a word with a broader meaning than observation:

observation: the act of making and recording a measurement
measuring: the act or process of assigning numbers to phenomena according to a rule

Other hypernyms of observation include measure, measurement, mensuration.

observation (noun)	measuring (noun)
the act of observing; taking a patient look	the act or process of assigning numbers to phenomena according to a rule
the act of making and recording a measurement
the act of noticing or paying attention
facts learned by observing
a remark expressing careful consideration