摘要
現今，團隊合作漸趨頻繁，多數人一同完成著作，判斷其為共同著作或結合著作相屬重要，惟因社會快速發展，著作形態越趨多樣，固有的判斷標準需加以調整。首先，本文企圖尋找一個適切的判斷模式，以區分共同著作和結合著作，解決共同著作中之一部得單獨利用，卻無法單獨受著作權法保護之困境，並以德國雙重性格理論延伸論述之。其次，透過比較法與判決之討論，建議應使共同著作之主觀要件立法化以及共同著作的「密不可分要件」宜隨著著作類型的不同而稍做調整。最後，考量到市場交易發展的便利性，本論文建議宜盡速將結合著作立法明文化，並反思共同著作權利行使之規範，使共同著作及結合著作在適用上有更完善的保障。
並列摘要
Today, teamwork is increasingly frequent, so it is important to define joint work and collective work. Owning to the rapid development of society, forms of work become more diverse. As a result, inherent criteria need to be modified. First of all, we need to find better criteria to distinguish between the joint work and the collective work, and also to solve the problem that is part of joint work being used alone but not being protected by copyright law. Moreover, the problem will be analyzed according to Dopplecharakter. Secondly, by comparative method and the opinions of practice, the thesis suggests that joint work of the subjective element should be concretely codified and the objective element, inseparability, should be modified, depending on different works. Finally, in order to pursue trade facilitation, collective work should be properly legislated.