Date Problems

• EAD2002:
  • TYPE – not required. May be used to specify whether the date is “bulk” or “inclusive.”
• EAD3:
  • @unitdatetype – not required. Use to record whether the unit dates are bulk or inclusive. Possible values: bulk, inclusive.

Date types in ArcLight

• Combines dates to Solr field: normalized_title_ssm

• Data Structure Standard (MARC)

  “define what elements of information are contained in the components of an information system.”

• Information Systems Standard (Z39.50)

  “define the roles of and interrelationships among each component within the overall system”

• What a Data Structure standard was originally supposed to be.
• “Report of the Working Group on Standards for Archival Description,” American Archivist 52, no. 4 (1989): 453-453.

Records in Context

• Still fields not set of rules
• Opaque process

Thinking in Abstractions