Making an attempt; conducting a trial or pilot implementation, often to test whether something works.
新しい制度は来月から試行される予定だ。
The new system is scheduled to be trialed from next month.
その方法をいくつか試行して最も効果的なものを選んだ。
We tried several methods and chose the most effective one.
試行錯誤の結果、より良い手順が見つかった。
As a result of trial and error, a better procedure was found.