The verbs
nVerbs
allow communication among DPs and SPs
nEvery
DP must implement all 6 verbs
nNot
all SPs (need to) use all 6 verbs
nExamples:
¨http://www.hti.umich.edu/cgi/b/broker20/broker20? verb=ListMetadataFormats
¨http://sunsite2.berkeley.edu:8088/oaicat/OAIHandler?
verb=ListRecords&metadataPrefix=oai_dc