module Moab

Moab is a module that provides a distintive namespace for the collection of classes it contains.

Data Model¶ ↑

• {FileInventory} = container for recording information about a collection of related files

  • {FileGroup} [1..*] = subset allow segregation of content and metadata files

    • {FileManifestation} [1..*] = snapshot of a file’s filesystem characteristics

      • {FileSignature} [1] = file fixity information

      • {FileInstance} [1..*] = filepath and timestamp of any physical file having that signature

• {SignatureCatalog} = lookup table containing a cumulative collection of all files ever ingested

  • {SignatureCatalogEntry} [1..*] = an row in the lookup table containing storage information about a single file

    • {FileSignature} [1] = file fixity information

• {FileInventoryDifference} = compares two {FileInventory} instances based on file signatures and pathnames

  • {FileGroupDifference} [1..*] = performs analysis and reports differences between two matching {FileGroup} objects

    • {FileGroupDifferenceSubset} [1..5] = collects a set of file-level differences of a give change type

      • {FileInstanceDifference} [1..*] = contains difference information at the file level

        • {FileSignature} [1..2] = contains the file signature(s) of two file instances being compared

• {StorageObject} = represents a digital object’s repository storage location and ingest/dissemination methods

  • {StorageObjectVersion} [1..*] = represents a version subdirectory within an object’s home directory

    • {Bagger} [1] = utility for creating bagit packages for ingest or dissemination

@note Copyright © 2012 by The Board of Trustees of the Leland Stanford Junior University.

All rights reserved.  See {file:LICENSE.rdoc} for details.