"Under Agile projects, you pay a given amount of money for a set amount of effort. But you can't guarantee a specified outcome for a specific price." You alway

"Under Agile projects, you pay a given amount of money for a set amount of effort. But you can't guarantee a specified outcome for a specific price." You always run this risk when writing software. The only difference with waterfall is that you can pretend that you won't have cost overruns. If you want a guaranteed price for something, don't use custom code.