Probably not new to the Km "old timers", but if you haven't come across the SECI model that was developed by Ikujiro Nonaka and Hirotaka Takeuchi in 1996, then worth a read. devised the SECI model in 1996. Often referred to as the "knowledge spiral," SECI stands for Socialization, Externalization, Combination and Internalization, and is heavily featured in the KM Institute's "Knowledge Manager Certification" programme.