Externalization requires the expression of tacit knowledge and its translation into comprehensible forms that can be understood by others. In philosophical terms, the individual transcends the inner and outer boundaries of the self. During the externalization stage of the knowledge-creation process, and individual commits to the group and thus becomes one with the group. The sum of the individuals' intentions and ideas fuse and become integrated with the group's mental world.
In practice, externalization is supported by two key factors.
Resource: Ikujiro Nonaka, Noboru Konno, The concept of "Ba: Building foundation for Knowledge Creation.
California Management Review Vol 40, No.3 Spring 1998.