Abstract: A method of estimating synergy in a development process is provided. Project hours spent during a baseline time period by an adopted application in support of a phased-out application are estimated. Project hours spent during a subsequent time period by the adopted application in support of the phased-out application are estimated. Estimated project hours spent in the subsequent time period are subtracted from estimated project hours spent in the baseline time period to determine an indirect synergy result. Hours spent in the subsequent time period by the phased-out application are subtracted from hours spent in the baseline time period by the phased-out application to determine a direct synergy result. The direct synergy result is added to the indirect synergy result to create a combined synergy result to display to a development process user.