HSPD Organization:

As a consequence of design parameters that were shaped by NPS
personnel familiar with preservation information needs, the HSPD
is organized as a hierarchical structure consisting of
preservation information types, categories, and activities.  The
highest level of the hierarchy delineates seven "partitions" of
preservation information resources: assessment, maintenance,
conservation, construction, products, reference, and
bibliographical data.  Each information partition consists of a
separate database.  In turn, each of the seven databases contains
subsets of "categories" of information.  Since no two databases
contain identical categories, the user can specify a particular
category of information in his query and expect to retrieve the
desired data from the single corresponding database.  Each
category may describe particular preservation "activities" as
part of the database, and the retrieval of these must also be
specified in the user query.  

<dfile13>   HSPD
<dfile16>   HSPD: Description
<dfile18>   HSPD: Premise