Tacit knowledge as a multilayer phenomenon: the "onion" model

Purpose This paper aims to clarify the term "tacit knowledge" and suggests the "onion model" as a way to explore conceptually linked layers of tacit knowledge. The model allows the application of different methodologies to elicit tacit knowledge in each layer, the ability to infer tacit knowledge in other layers from tacit knowledge gained in another layer and the exploration of the dynamics of tacit knowledge among the various layers presented in the model. Conceptual and practical advantages compared to prior works on tacit knowledge are discussed. Design/methodology/approach The main theoretical and methodological dilemmas discussed in the literature regarding tacit knowledge are reviewed. The "onion model" presented in this paper suggests an approach and methodologies that address the issues raised in the literature. The different layers of the model are demonstrated by prior research studies. Findings The "onion model" discussed in this study points to various layers of tacit knowledge and the links among them, allowing a research-based approach, as well as various practices. Originality/value The approach discussed in this paper addresses some major problems discussed in the literature on tacit knowledge.