has output has input measuring true Measuring is observing a property of an entity called a quantity, that has a magnitude that can be expressed as a number and a reference to another entity, and obtaining one or more quantity values for it. The observed entity is a quality or a disposition for a continuant, for a process it is a process property such as duration. [Allotrope] measurement measuring 2018-08-09 Changed definition [Allotrope] quantification observing entity information content entity planned process