观察是一种生物（例如：人类）的感知或智能累积的活动，以不同的感官（如眼睛）凡感觉特定的现象从而归纳出知识到某个先前的知识与观念架构内以作出判断。

量子力学的观察指的是测量

Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the recording of data via the use of instruments. The term may also refer to any data collected during the scientific activity. Observations can be qualitative, that is, only the absence or presence of a property is noted, or quantitative if a numerical value is attached to the observed phenomenon by counting or measuring.