Documentation of a business case used in an IT development project should be retained until:

A.
the end of the system’s life cycle.

B.
the project is approved.

C.
user acceptance of the system.

D.
the system is in production.

Explanation:
A business case can and should be used throughout the life cycle of the product. It serves as an
anchor for new (management) personnel, helps to maintain focus and provides valuable
information on estimates vs. actuals. Questions like, ‘why dowe do that,”what was the original intent’
and ‘how did we perform against the plan’ can be answered, and lessons for developing future
business cases can be learned. During the development phase of a project one shouldalways
validate the business case, as it is a good management instrument. After finishing a project and
entering production, the business case and all the completed research are valuable sources of
information that should be kept for further reference