A Overview of Standards and Technologies in Identification of Archival Information Lou Reich CSC/NASA AWIICS 13-Oct-99

OAIS Context for Identification

Types of Identification Attributes –Relational database, catalogs, finding aids Location – URL, X.500,PURL Names –Local Examples: UNIX file names –Global URN, DOI,Handles –Content Identifiers DOI, ISBN

Types of Identifiers in OAIS RM Content Identifiers –Found in Descriptive Data –Used by Access Aids to search or order –Examples DOI, ISBN, URN Archive Information Package Identifiers –Identification of AIP within the archive –1:N relationship with Content Identifiers Storage Identifiers –Location(s) within Archival Storage System –N:1 relationship with AIP

OAIS Naming issues (1 of 2) Federation Issues –Scope of AIP Globally Unique –Multiple copies in Federated Archives Versioning Persistence Issues –Archives close and APIs are dispersed –Technology shifts in Resolution technology –Versioning

OAIS Naming Issues (2 of 2) Archival Storage /Ingest Issues –Is the AIPID derivable from the Content Objects Data Management Issues –Length of Identifier –Duplicate Identification Access Issues –Can parameters to customization services be passed in Content Ids/AIPIDs –Payment/Security

Current Identification Standards Object Management Group –Interoperable Name Service –Patient Identification Service IETF Internet efforts –Uniform Resource Identifiers Uniform Resource Locators Uniform Resource Names –CNRI Handles,PURL Uniform Resource Characteristics Content –Digital Object Identifier (DOI) –ISBN

PIDS Registration/Naming Authorities Fully qualified Name Registration authority NamingEntity Local Name

Work Group Activities Discuss current identification scheme Look at Archival Systems Requirements –C. Lynch’s five questions on Identification schemes Discuss any known research efforts Develop recommendations