re we will define terms that we need to use in our discussion. If terms have been defined sufficiently elsewhere, please point or cite source.''

Definitions (cooked)

• MARC21
• OPAC
• Z39.2/ISO 2709

Definitions (raw)

• MARC is:
  • 1. The Z39.2/ISO 2709 record structure

• 2. MARC 21's implementation of the Z39.2/ISO 2709

• 3. MARC 21's family of formats (bib, authority, etc.)

• 4. MARC 21's set of data elements for each of the formats

• 5. MARC 21's instructions for punctuation or other included coding in the data values.