• 1 Summary
  • 1.1 Normalization
  • 1.2 Tagging Structure
  • 1.3 What to tag
  • 1.4 Interfaces
  • 1.5 Distribution
• 2 Conclusion

Many tools use some kind of tag-normalizations. This seems to be a fundamental part of each tagging engine wich should probably be copied by OSSTag.

• ccHost - all tags are converted to lower-case
• FreeTag - Tag-normalization (lowercase, removal of non-alphanumeric chars) → searching for NY, ny and N.Y. will all find the same results

Only three tools go beyond a flat tagging structure:

• Tasty allows to tag Things and Users.
• Infomanager uses graphs / paths
• Tagging Prototype from Timothy - 3-level-tagging

No tool made any attempt to use some special thesaurus for tagging. Some really good ideas can be found here: http://www.groklaw.net/article.php?story=2006052522234947

A more concrete way to use a special thesaurus with information from Wikipedia is described at Which tags do we allow

• Tasty has an interface via HTTP GET/POST
• Taggee has an interface via HTTP GET/POST

This is also a way we could use to provide a central tagging server

No tool implements distributed tagging-engines. All use a central database.

The tool that is closest to what we need would be FreeTag .

I suggest to write a prototype from scratch with the primary goal to try out several tagging-structures. OSSTag v0.1 could be enhanced for 3-level-tagging and n-level-tagging in combination with wikipedia or ACM thesaurus. Then we could try to tag a project with each combination of these ways and see which fits best for our needs ..

<< back