PDFR113 | An understanding of principles and issues of data representation is essential for data curators because only curators who understand how information is represented by the digital objects in their care can take effective steps to ensure that the information represented is not lost. The long-term sustainability of digital objects is materially affected by the methods of data representation relied on by those objects; tradeoffs
between different courses of curatorial action can be correctly assessed only with an understanding of how the information to be preserved is represented by physical objects |

Contents
1. Introduction
2. Analog and Digital Representations
3. Resources: Representations
-- http://books.google.com/books/about/The_computer_and_the_brain.html?id=Q30MqJjRv...
-- http://books.google.com/books/about/Logic_and_information.html?id=AqrwD8PYbakC
4. Layers of Representation
-- https://guide.dhcuration.org/contents/glossary.html#byte
-- https://guide.dhcuration.org/contents/glossary.html#stack
-- https://guide.dhcuration.org/contents/glossary.html#resources
5. Resources: Layers of Representation
-- http://en.wikipedia.org/wiki/Line_code
-- http://tools.ietf.org/html/rfc822
-- http://tools.ietf.org/html/rfc1149
6. Curatorial Requirements for Data Representations
-- Permanence
-- Usability
7. Bit Preservation and Information Preservation
8. Resources: Bit Preservation and Information Preservation
-- http://blog.dshr.org/2009/04/spring-cni-plenary-remix.html
-- http://www.google.com/url?sa=t&rct=j&q=david rosenthal cni&source=web&cd=2&ved=0CCUQtwIwAQ&url=http://www.youtube.com/watch?v=h53DMtBUxsk&ei=asahTo2vBbSCsgLHhqSKBQ&usg=AFQjCNGyav5pn8QOqUNPf3DcNCYl9TpLFg
-- http://www.google.com/url?sa=t&rct=j&q=david rosenthal cni&source=web&cd=3&ved=0CCsQtwIwAg&url=http://vimeo.com/5407401&ei=asahTo2vBbSCsgLHhqSKBQ&usg=AFQjCNFhsESvkQeXMvuOrTItRZnv41Eu9g
-- Ensuring the Longevity of Digital Documents http://www.sciamdigital.com/browse.cfm?ITEMIDCHAR=07FBACA7-7185-43C8-B9E7-E07B53...
-- http://www.panix.com/~jeffr/Prof/digilong.html
-- http://www.ijdc.net/index.php/ijdc/article/view/151
-- http://delivery.acm.org/10.1145/1840000/1839692/p47-rosenthal.pdf?ip=173.14.236....
-- http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd...
-- http://www.lockss.org/lockss/Home
-- http://www.clir.org/pubs/reports/lesk/lesk2.html
-- http://ijdc.net/index.php/ijdc/article/view/170
9. Format Information
10. Resources: Format Information and Identification
-- http://www.digitalpreservation.gov/formats/
-- http://twitter.com/robincamille
11. Documents
12. Word-Processor Formats
13. Resources: Word-Processor Formats
-- ISO http://www.iso.org/iso/catalogue_detail?csnumber=43485
-- http://www.iso.org/iso/catalogue_detail?csnumber=51463
14. HTML
15. Resources: HTML
-- http://www.w3.org/TR/xhtml1
-- http://www.w3.org/TR/html5/
16. SGML, XML, and Their Applications
-- http://xml.coverpages.org/
17. Resources: SGML, XML, and Their Applications
-- http://xml.coverpages.org/
-- http://jats.nlm.nih.gov/z39.96/0.4/
-- http://www.niso.org/kst/reports/standards?step=2&gid=None&project_key:us...
-- http://jats.nlm.nih.gov/
-- http://docbook.org/
-- http://www.tei-c.org/release/doc/tei-p5-doc/en/html/index.html
-- http://www.tei-c.org/
-- https://guide.dhcuration.org/contents/glossary.html#tex
-- https://guide.dhcuration.org/contents/glossary.html#latex
18. Resources: Other Document Formats TeX
-- http://www.tug.org/
-- http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=...
-- http://en.wikipedia.org/wiki/Portable_Document_Format
19. Images
20. Resources: Raster Graphics
-- http://books.google.com/books/about/Digital_images_for_the_information_profe.htm...
-- http://www.w3.org/TR/2003/REC-PNG-20031110/
21. Resources: Vector Graphics
-- http://www.w3.org/TR/2011/REC-SVG11-20110816/
22. Databases
23. Resources: Databases
-- http://db.cs.berkeley.edu/papers/fntdb07-architecture.pdf
-- http://books.google.com/books/about/Readings_in_database_systems.html?id=7a48qSM...
24. Numbers
25. Resources: Numbers
-- http://dl.acm.org/citation.cfm?id=93557&dl=ACM&coll=DL&CFID=63750865...
-- http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=4610933

SA - Programming Languages
RT - Interoperability
BT - FAIR
NT - Curation
UF - Digital Curation
SN - This is an article about the basis for digital objects and from a curatorial perspective. (This entry does not reference a hierarchical list)