決心する、決定する、decideのニュアンスの他に、判定する、判断する、judgeの意味でも良く使われます。
Van Gogh's painting of a peasant woman was sold for 66 million yen at an auction in Tokyo as it was determined as genuine by the Van Gogh Museum in Amsterdam.
Internal auditors should determine if corrective action has been taken and is achieving the desired results or if management has assumed the risk of not taking the corrective action.