https://www.openhub.net/p/_compare?project_0=Drupal+%28core%29&project_1=WordPress&project_2=Tiki+Wiki+CMS+Groupware

https://www.openhub.net/p/tikiwiki/contributors

https://www.openhub.net/p/tikiwiki/contributors?sort=twelve_month_commits

https://www.openhub.net/p/tikiwiki/contributors?sort=commits&time_span=12+months

https://www.openhub.net/p/tikiwiki/contributors?sort=commits&time_span=30+days

https://openhub.net/p/tikiwiki/contributors?sort=oldest&time_span=12+months

We have a specific entry:
https://www.openhub.net/p/tiki-dependencies

• In the 2013-2015 period vs 2017 and after
  • The number of commits is very high
  • The fluctuations are intense from month to month, which is surprising given it's aggregate data for over 100 projets.

Potential explanation: Many projects used today by Tiki were born in 2011-2013 and there was a lot of initial activity and things stabilized because many projects became more established and because of the move to Git (more work/output per commit, because multiple commits are squashed into one). Also, some projects were started on GitHub.

https://www.openhub.net/p/_compare?project_0=Tiki+dependencies&project_1=Tiki+Wiki+CMS+Groupware

So 90% of code used by Tiki is shared with other projects. Related: How to pick a software library

• For charts, there are 2 possible values for time_span​: 30+days and 12+months.

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