"BIBFRAME Instances reﬂect an individual, material embodiment of a BIBFRAME Work that
can be physical or digital in nature. A BIBFRAME Instance exists as a Web based control
point that includes properties speciﬁc to the materialization as well as contextual
relationships to appropriate BIBFRAME Authorities related to the publication, production,
distribution of the material resource. Each BIBFRAME Instance is an instance of one and
only one BIBFRAME Work."
The conceptualisation issue I have seems to be expressable via the questions:
(c) shouldn't the HTML Instance be defined as the http://bibframe.org/vocab/unionOf
all the HTML pages that make up the HTML version of the report
plus all their page dependencies (css, images, media files, etc)?
(d) if an instance corresponds to only one Work, in the case of composite Works which are subsequently split into HTML along the lines of the original Works, do the HTML pages correspond to the original or composite Work?