About: http://webisa.webdatacommons.org/394193414

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In control theory, observability is a measure for how well internal states of a system can be inferred by knowledge of its external outputs.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org