Their usages are best explained when assigning these timestamps to different levels where they are used:
* On Object (instance) level: '''CTS''' (''CreationTimeStamp''), '''UTS''' (''UpdateTimeStamp'')* On Property level: '''VTS''' (''ValidationTimeStamp''), '''CTS''', '''UTS'''* On Proxy level: '''ETS''' (''ExportTimeStamp''), '''ITS''' (''ImportTimeStamp'')* On ProxyProperty level: '''ETS''' (''ExportTimeStamp''), '''ITS''' (''ImportTimeStamp'')
Saves the date and time when an object is created.
The ''CreationTimeStamp '' (CTS) is set exactly once at that moment when a new Ubikle is instantiated in the working memory. This timestamp will never be changed by UBIK. This timestamp does not denote when the Ubikle was written to the database eventually.
=== UpdateTimeStamp ===