The socially produced acknowledgment of the existence of real phenomena and the characteristics they possess, presenting a way of viewing the world.
Mehta, Lyla, 'From Darkness to Light? Critical Reflections on the World Development Report 1998-99'. Journal of Development Studies 36 1999:153
Davenport and Prusak, 2000
A fluid mix of framed experience, values, contextual information, and expert insight that provides a framework for evaluating and incorporating new experiences and information. It originates in and is applied in the minds of knowers. In organisations, it often becomes embedded not only in documents or repositories but also in organisational routines, processes, practices, and norms.
Davenport, T.H., and Prusak, L., Working Knowledge: How Organizations Manage what they Know, Harvard Business School Press, Boston, MA, 2000:5
A dynamic framework or structure from which information can be stored, processed and understood.
Howells, Jeremy RL., "Tacit knowledge, innovation and economic geography." Urban Studies 39.5-6. 2002:872.