The stakeholders who have the proper access authorizations can require that the service be available 99% of the time and that the download time per page of the document be no more than four seconds.
拥有正确访问授权的涉众可能要求该服务在99%的时间内可用，并且每个文档页的下载时间不超过四秒。
2
Often, you have access to a URL, but it doesn't make sense to load the page each time the context changes as it adds overhead that might not be warranted.