Abstract
Evidence-based IT development aims at developing a new commercial contract model for IT projects where the customer’s payment is dependent on measurable effects of using the vendor’s system. The idea is to establish a strategic partnership in which customer and IT vendor share the responsibility of providing IT solutions that meet agreed-upon, measurable effects. The project investigates effects of the use of electronic patient records, how collaboration between vendor and customer can be regulated, and how contract fulfillment could be determined on the basis of evidence of effects.