IBM History Flow tool

IBM's History Flow tool is a visualization tool for a time-sequence of snapshots of a document in various stages of its creation. The tool supports tracking contributions to the article by different users, and can identify which parts of a document have remained unchanged over the course of many full-document revisions. The tool was developed by Fernanda Viégas of the MIT Media Lab and Martin Wattenberg and Kushal Dave of IBM.

Without explicitly referencing it, the history flow's visualization mechanism is mainly based on the transclusion beams mechanism that was introduced by Ted Nelson to show Transclusion.^[1]

IBM Research has done an analysis of Wikipedia usage and edits using a history flow tool.^[2]

References

^ Nelson, T. H. (1999). "Xanalogical Structure, Needed Now More than Ever: Parallel Documents, Deep Links to Content, Deep Versioning and Deep Re-Use". ACM Computing Surveys. 31 (4es): 33. doi:10.1145/345966.346033.
^ http://www.research.ibm.com/history/index.htm

History flow paper (pdf), 2004 - presented at CHI 2004, in Vienna on 24 April-29 April. A demonstration of History Flow using the histories of various Wikipedia articles, using a database snapshot from May 2003.
IBM's alphaWorks page for the History Flow Visualization Application , including a downloadable implementation of it.

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[1] Nelson, T. H. (1999). "Xanalogical Structure, Needed Now More than Ever: Parallel Documents, Deep Links to Content, Deep Versioning and Deep Re-Use". ACM Computing Surveys. 31 (4es): 33. doi:10.1145/345966.346033.

[2] ttp://www.research.ibm.com/history/index.htm

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