Abstract
Improvements of project management activities are desired in every business domain. Sharing project lessons-learned across business units, can be an effective way to improve project management activities, on an enterprise composed of various business units. In order to share project lessons-learned across business units, we collect 31 project failure cases analyzed in each business unit from 8 business unit, re-analyze them, and extract 50 sharable project lessons-learned. Moreover, we design an analysis method to extract sharable project lessons-learned, that reflects analysis know-how gathered from actually performed re-analysis activities.