Explain about the term project initiation document.
A project initiation document (PID) that is project proposal document or charter, is a report to illustrate a business case for a project, detailing the explanation for undertaking, this and for continuation of this. A project initiation document is used to describe the financial and other advantages that the project is expected to deliver. This also details the cost, timescale and other constraints into which the project is needed to operate and against that performance will be estimated.