Knowledge utilization is integrating the knowledge into the organization. In
the knowledge engineering domain, this process refers to providing the right
knowledge to the right person at the right time, right place and right format. Thus,
knowledge storage and retrieval are considered as a key technology that supports
knowledge workers to complete their task. This process supports the internalization
mode in SECI model. It helps knowledge workers to internalize the explicit
knowledge and transform to tacit knowledge when needed. Knowledge retrieval is
extraction of knowledge from identified knowledge resources (i.e. document,
computer system, an employee) [Holsapple 99]. This technique is often related to the
representation mode of the knowledge. Then, there are a lot of interdependencies
between representation mode and retrieval mode.