IT project and program plans and schedules must be created and used for large scale projects and programs.
No one is saying that a plan is not subject to revision or change, but through control updating and change control processes. It is also a tool that supports status reporing including for "stand ups". But failing to appropriately plan is a serious mistake to make for large scales projects or programs.For large scale projects and programs (multimillion dollar contracts) more detail is required for planning, and that planning must extend further out to allow estimates to be more realistic and accurate. Customers/client must be comfortable with estimates for the money/cost for projects and programs. For Agile development processes this could be an issue with short term planning.
With the plans, at the Go or No Go gates, it will be important to examine where you are, if any modifications are required, or if it is a "No" to move on to the next phase or iteration required. Also, at the gates any adjustments that have to made, any refactoring that must be considered, can be evaluated. Revisions and changes to plans or the system/product's development can be approved through the proper Change and Configuration Control process.
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