The present document is an informative architectural study that identifies different viable architectural and functional options for the partitioning/distribution/consolidation of functionality amongst NFV-MANO functional blocks defined in NFV architectural document ETSI GS NFV 002 [i.2] and further refined in NFV-MANO architectural framework ETSI GS NFV-MAN 001 [i.4], as well as the potential impact in each case on reference points, on interfaces associated with the reference points, and on information elements exchanged over those interfaces.