IT基础设施体系结构的不断成熟。
这包括对应用程序代码的更改、操作更改、硬件更换、基础设施体系结构更改等。
This would include changes to the application code, operational changes, hardware alternatives, infrastructural architectural alternatives, and so on.
可能也需要对基础设施体系结构进行分析，以确保该级别的更改是否能满足SLA要求。
The infrastructure architecture might also be analyzed to ensure whether changes at that level can satisfy the SLA requirements.
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