open-door policy

idiomatic

(idiomatic, management, politics) A policy or usual practice, by a person in authority, of permitting subordinates or constituents to visit his or her office unannounced and at any reasonable time for the purpose of discussing matters of concern.

Japanese Meaning

権力者（例：政治家や経営者）が、部下や一般市民が事前の通知なしに合理的な時間内に訪問し、懸念事項や意見を直接話し合えるよう、オフィスなどを開放する政策や慣行を指す。 / 政治や経営の場面で、上層部が市民や従業員との意見交換や相談を推奨するために、オフィス等を自由に出入りできる状態にしておく姿勢や制度

What is this buttons?

Because of her open-door policy, employees felt comfortable bringing concerns directly to her before small issues became major problems.

Google Translation / DeepL Translation

彼女は従業員が予約なしでオフィスに立ち寄ることを許可する方針をとっていたので、些細な問題が大きな問題になる前に直接相談しやすかった。

Details

Sense（1）

Take Continental Airlines's Robert F. Six's view of much touted open-door policies: “‘My door is always open—bring me your problems.’ This is guaranteed to turn on every whiner, lackey and neurotic on the property.”

Google Translation / DeepL Translation