I have implemented a history feature that tracks each modification made by a user. Each time a user makes a change in a bundle, while the oekg gets updated, the changed part of the bundle is being logged. It means the previous state of the bundle (before change) along with the new state (after change) of the bundle is being tracked. For each modification, the bundle ID, date and time of the change, and the user who did the change is saved. This will let us filter the changes based on the specific bundle(s), a period of time, or specific user(s). The following is a screenshot of the feature so far:

Do you have suggestions about how to filter and navigate the history? We can also explore options for filtering a specific part of a bundle such as 'study-name' or ...

Discussion from oekg-meeting today:

• changes made by two users at the same time: how to deal with?
  • lock entities that are being edited for other edits
  • implement time out to prevent permanent locks
  • add in-memory-database?
  • lock single entities, or whole bundles, too?
• have all changes in one place is nice, filtering for bundles, users, time are helpful, too.