知識管理(Knowledge Management)於近年來大量的為人所鑽研，而其中知識分享方面的研究，更廣為學者所熱衷。由於網路科技與虛擬社群之大量成長，許多企業已經企圖建立企業內虛擬社群來保留與創新知識。知識分享行為可視為知識擁有者與知識接受者間彼此交流的一種過程，目前對知識分享方面的研究主要著重於促進知識擁有者分享知識，而較少對於知識接受者方面相關的研究。因此若是能有效的了解影響知識接受者接受知識意圖的原因，便能透過刺激這些因素提高知識需求。知識並非對任何接受者都有所助益，而是要由確實有需要的對象接受，才能夠發揮真正的價值，因此知識接受者是否明確了解自己對於知識之需求，將成為知識能否有效利用的重要因素。
因此，本論文希望藉由討論知識接受者之知識需求是否明確，對於知識分享工具的成效是否有所影響，同時加入網路與網頁之使用經驗，探討能提高知識接受者接受知識意圖之影響因素。若是能夠了解確實之影響因素，對於推動社群內部知識分享傳遞上將會有很大的幫助，另外對於企業之知識創造也相當有助益。
本研究採用調查研究法為研究方法進行問卷調查以驗證整合模型的適合度，透過結構方程式(structuralequation modeling, SEM)進行資料之分析，以衡量消費者決策過程與目標導向與否間之關係評估。本研究驗證了當使用者越明確的知道自己的知識需求，會使知識分享上常使用的工具之成效越高，進而提高知識接受者接受知識的意圖。另外，使用者使用網路與網頁的經驗越多，皆會正向的影響知識分享工具之成效。
本研究之貢獻在於確認了明確的知識需求與知識分享工具之成效皆為影響知識接受者接受知識意圖的重要因素，如此即能透過刺激這些因素如協助使用者分析了解自己所需之知識等等，以提高知識分享工具的成效，並針對知識分享工具成效影響接受知識意圖的程度高低進行虛擬社群之建構依據。同時將此研究之結果結合實務上之建議，提供給虛擬社群經營者與管理者，做為虛擬社群發展策略上之參考，包括在建構知識社群時，應考慮使用者之網路與網頁使用經驗多寡，來優先針對能提高使用者知識意圖的變數進行建構與修正，並期望能透過這些改進使虛擬社群保留、分享與創造更多帶來組織效益之知識。

Knowledge sharing, which is defined as the transaction between the knowledge owners and the knowledge accepters, is the main topic in the knowledge management and has been discussed several years. Most existing studies of knowledge sharing focus on the issue of how to increase the intention of the knowledge owner to release their knowledge, but few of them intend to identify the influencing factors of the intention of knowledge accepter to accept knowledge.Because of theprevalence of the Internet and the rapid advance of information technology, many organizations put efforts to preserving and creating more useful knowledge by means of virtual communities.
Because of knowledge would display its real value only if the right person obtains the knowledge what he or she really needs, and hence it is critical for knowledge seekers to clearly define their knowledge demand. As a result, this research aims to examine the influence of knowledge demand certainty on the effectiveness of knowledge sharing tools and knowledge acceptance intention in the context of online virtual communities.
Our research recruited our survey participants from the users of PTT, which is the biggest virtual community in Taiwan, and the empirical data collected from survey were analyzed using the structural equation modeling (SEM). The research results indicate that the degree of knowledge demand certainty has a positive influence on the effectiveness of knowledge sharing tools, and, in turn, has an indirect positive influence on the knowledge acceptance intention in the virtual communities.
Additionally, we found that users’ Internet and web experience has a positive influence on the knowledge sharing tool’s effectiveness. The results has contributed to the virtual community administrators by providing them with insights into choosing, planning, and designing effective knowledge sharing tools, and, consequently, enabled organizations to better develop virtual communities that can effectively help them manage critical knowledge.

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