Editing Proof of concept (section)

=== Business development===
In the field of [[business development]] and [[sales]], a vendor may allow a prospect customer to try a product. This use of proof of concept helps establish viability, isolate technical issues, and suggest an overall direction, as well as provide feedback for [[budgeting]] and other forms of internal decision-making processes.{{citation needed|date=February 2015}}

In these cases, the proof of concept may mean the use of specialized [[sales engineer]]s to ensure that the vendor makes a best-possible effort.