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Data Collection and Metadata Mapping Strategies for Effective Information Organization

Learn about identification and collection methods at various levels of analysis, including organizational, application-al, logical, physical, and geographic. Discover the significance of metadata, disk operations, file creation and modification times, and preservation techniques. Explore how various metadata types such as Microsoft Word, EXIF image, and email metadata provide valuable insights in information management. Dive into supervised machine learning, file culling, custodian responsibilities, and preservation strategies.

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Data Collection and Metadata Mapping Strategies for Effective Information Organization

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Presentation Transcript

  1. Identification and Collection INFM 718X/LBSC 708X Douglas W. Oard

  2. “Data” Mapping • Organizational • Application-al • Logical • Physical • Geographic

  3. Levels of Analysis

  4. How Disks Work Extracted From Shelly Cashman Vermatt’s Discovering Computers 2004

  5. Windows “NTFS” File Metadata • Time file created (or copied) • Most recent one; optionally “journaled” • Time file content changed (or made changeable) • Most recent one; optionally “journaled” • Time file renamed (or moved) • Most recent one • Time file metadata created or changed • Most recent one • Time file accessed (content or metadata) • Most recent one; optionally disabled

  6. Microsoft Word Metadata • Author • Title • Dates (may not agree with NTFS!) • Created • Modified • Accessed • Printed • Each tracked change

  7. EXIF Image Metadata • Time • Location • Camera manufacturer and model • Camera orientation • Exposure information (shutter speed, f stop) • Thumbnail versions • Altering the image may not change the thumbnail!

  8. Email Metadata • Message metadata • Times • Sent • Resent • Received • Route • In-reply-to • Attachment file type • System metadata • Folder

  9. File Types • Extensions • MyDocument.xls • MIME type • Magic bytes • Supervised machine learning

  10. Capture • Imaging • Tape copy • Disk image • Active file capture • Hardware write block • Software write blocking • File system copy

  11. Culling • Custodian • De-NISTing • Based on NIST list of known program hashes • Date range

  12. Preservation • Future accessibility • Replication • Service copies • Authenticity • Documented traceable process • Separately stored hashes

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