About: http://webisa.webdatacommons.org/416334900

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	So, if the main assembly is at the top most level and the components are in bottom most level, then you are coming from top to bottom and it is top down assembly.
http://www.w3.org/ns/prov#wasQuotedFrom	zwsoft.com