Fourth improvement analysis should be conducted regularly and exhaustively. This can take place before the guest has arrived during the stay of the guest or after the guest has left. It can take place at any time in almost any way. The whole point of improvement analysis is to find out ways to improve service quality and ways of reducing cost. Now improvement could be carried out by presenting the staff with a survey. The survey could ask the staff things like what might in their experience or in their opinion improve service quality. Furthermore the staff especially lower staff can be asked where in their opinion costs can be cut. The lower staff is usually very aware of wasteful practices. This way they will be made to feel valued and respected and at the same time this will address the issue of improving service quality and of cutting costs.
第四的改善，应定期进行详尽分析。这可以在客人到达的客人住宿或在客人离开后发生的。它可以在几乎任何方式在任何时间发生。改善分析的关键是找到提高服务质量和降低成本的方法。现在可以通过改善员工进行的调查。调查可以让员工有什么喜欢的东西可能在他们的经验或在他们的意见，提高服务质量。此外，员工尤其是较低的员工可以问他们的意见可以节省成本。较低的员工通常是非常清楚的浪费行为。这样他们会觉得受到重视和尊重，同时这将提高服务质量和降低成本的问题。
