Abstract
Today, much effort and importance is placed on the management of knowledge, its security, and sustainability in context to organizations and their competitiveness. This paper outlines a typology to guide that applying tacit knowledge sharing themes from a social perspective, that is trust, care, leadership charisma, knowledge culture, concept ba, and social network analysis, affect a group's decision support system. This paper shows that the mentioned themes facilitate a more open group discussion with a higher degree of consensus and agreement resulting in a vividly higher amount of accuracy in decision making.