This seems to be a break from the executive overview at the beginning of the document where the focus is on the instantiation of a private cloud, but continues through the remainder of the document.

这里看来，文章的开始篇幅是重点介绍了私有云的示例，并且在接下来的篇幅中继续说明。

youdao

In addition to the required one-page summary, your report should include an additional two-page executive summary. The executive summary should provide a broad overview of the potential issues.

除了一页的摘要，你的论文中还要有两页的执行摘要，以提供提供广泛的潜在问题的概述。

youdao

The council's Health and Wellbeing Overview Committee will discuss the proposals next Thursday ahead of a council executive meeting on 26 October.

BBC: Meals on wheels