As with other methods of software development, the application$$s size is a major indicator of how much it might cost to develop. In agile development, cost estimates are often made based on size measurements such as story points.

You will recall that each user story for the health$-$care app is assigned a number of story points based on estimates of how much work is needed to complete each major task. Based on prior experience with agile projects, the three$-$person accounting staff at Third Avenue Software has determined an average dollar production cost for a story point: $$1200.$