It is important to record each change of the status/strength of the hive or bee family. This monitoring will allow the beekeeper to take the proper actions (unification, treatment, queen change etc.)
Date: 01/06/2016, Hive state: Active, Bee family source: Artificial swarming, Strength: 25%, Weak
Date: 15/07/2016, Hive state: Active, Strength: 88%, Strong
Check Hive history and Strength history graph.