A Relation Routing Scheme for Distributed Semantic Media Query

Table 2

Major attribute names and their descriptions for the PQT, RRT, and metadata store.

Attribute name	Description
Pending Query Table
Queryname	Name of the query represented in the format as discussed in Section 3.1
Inface	The incoming face of the query
Nonce	The nonce of the query packet for loop avoidance
Metadata store
Queryname	Same as in PQT
Result	Result of the query
Inface	Incoming face of the result
Origin	Source that generates the result
Response Relation Table
Queryname	Same as in PQT
Query_inface	Incoming face of the query
Result_infaces	Incoming faces of the results that have already been forwarded through query_inface for this query
Origns	Sources that generate these results