Chapter 2. Description of a Metadata System - The Key Points of this Chapter
Support for the development, use, and maintenance of a metadata system must
exist at the highest levels of the education agency if the system is to reflect the
organization's long-range vision, goals, and information needs.
The organization's data governance team should consider metadata
management as important as any other aspect of the organization's data
A metadata model can portray a high-level perspective on the relationships
between metadata and data, or it can depict a more detailed view of these
Most organizations with metadata systems maintain an inventory of metadata
items that address most issues for most users.
A data dictionary is an agreed-upon set of clearly and consistently defined
elements, definitions, and attributes—and is indispensable to any metadata
system. Although many items in a data dictionary can be classified as metadata,
data dictionaries differ from metadata systems in that they generally contain
only a subset of items and features necessary to understand and navigate data
elements and databases.