6. Limitations and conclusions
The current study had some limitations. The first was that only two databases were used, i.e. Scopus and ISI Web of Science, but these were selected because of their academic prestige and breadth, as well as their extensive coverage of KM and OL studies. Second, the search terms used excluded some terms recommended by certain authors. However, the major terms were included and the effect of excluding certain terms was not expected to be significant. Third, the number of thematic categories was not formally optimized and the descriptive names used were open to other interpretations.
We conclude that OL has been gradually absorbed within KM. In particular, the characteristic OL processes of knowledge creation and acquisition are now essential parts of KM definitions, processes and studies.
We suggest that future studies should investigate the role of knowledge sharing as a connector between KM and OL. Individuals and organizations learn by sharing knowledge. According to the KM literature, knowledge sharing is the core process responsible for knowledge creation and application.