The post$-$implementation audit also called project close out meeting is vitally important in improving the practice and process of project management, yet it is always so difficult to get senior management and the client to allocate the time to authorize and participate in these audits. Knowing that, what would you as a project manager do to help alleviate this problem? What would the agenda look like for the post$-$implementation audit or close out meeting? Be specific and include our text and additional references other than the text to support your views.

PLEASE PROVIDE A REAL BIG ANSWER IN A SUMMARISED ALONG WITH THE CITATIONS METIONED IN THE SUMMARY. NEED IN MORE DETAILED WAY.