現今的各類產業分工細密，許多公司都有專職的技術或能力，尤其許多的中小企業更是經常依靠少數的專精能力在市場上生存。隨著產品的越趨複雜化，跨企業組織之間的合作也越加頻繁。因此，本論文將研究的目標設定在跨企業組織的整合上，提出一套兼具便利、簡潔與安全的雲端跨組織合作系統。通過角色基存取控制來分配與控制參與者的權限，並結合屬性加密來確保細粒度的資料安全性，以此為基礎設計一套系統架構並將之實作。 Currently various industries have a fine division of labor, different companies have their own specialized skills or capabilities. Many small or medium-sized enterprises often rely on a few specialized capabilities to survive in the market. As products become more and more complex, collaboration between organizations is becoming more frequent. Therefore, in this thesis, we set the goal on the integration of cross-organizations, and proposes a cloud-based cross-organization cooperation system that is convenient, concise and secure. We assign and control participant permissions through role-based access control, combined with attribute-based encryption to ensure fine-grained data security. Based on these, we designed and proposed a system architecture and implement it.
