The policy, as it relates to procurement, should recommend (or require) an evaluation of switching costs when comparing open source vs. proprietary bids. This is often a hidden cost when choosing a proprietary option, and requiring this estimate offers the opportunity for a more realistic comparison, and is an effective way to demonstrate a value proposition of open source that isn't readily apparent.
The policy, as it relates to procurement, should recommend (or require) an evaluation of switching costs when comparing open source vs. proprietary bids. This is often a hidden cost when choosing a proprietary option, and requiring this estimate offers the opportunity for a more realistic comparison, and is an effective way to demonstrate a value proposition of open source that isn't readily apparent.