雲端運算服務為企業提供資訊交換或傳送供應鏈管理資訊的替代解決方案。本研究探討了外部因素如何影響雲端供應鏈系統中的應用服務。借助於詳盡可能性模型和承諾信任理論，本研究利用論證優勢和來源可信度結構詳細闡述了理論模型的開發和測試，檢驗了感知有用性，態度，信任和雲端供應鏈使用意圖之間的關係。對於先前的研究沒有提供針對雲端供應鏈使用的態度形成模型，也沒有提供態度與使用意圖的關係或信任如何影響雲端供應鏈使用的有用性、態度和意圖，這限制了對於如何利用雲端供應鏈服務的理解。本研究提出了一個理論模型，將詳盡可能模型和承諾信任理論的架構整合，並使用論證優勢和來源可信度的理論架構模型，與雲端供應鏈使用意圖的感知有用性、信任和態度聯繫起來。在本研究整合模型中，來源信任度和感知有用性影響了使用者對雲端供應鏈使用的態度，也進而影響信任和使用意圖，同時也發現使用者的感知有用性對於使用雲端供應鏈服務態度和意圖發揮關鍵作用。

Cloud computing services provide an alternative solution for enterprises in exchanging or transmitting data for supply chain management (SCM). This study examines how external factors influence cloud service applications in SCM systems. Drawing on the Elaboration Likelihood Model and commitment-trust theory, this study details the development and testing of a theoretical model using the argument advantage and source credibility constructs, examining the relationships between perceived usefulness, attitude, trust and cloud SCM usage intention. Previous studies have not provided a model of attitude formation targeting cloud SCM, nor for examining how attitude is related to usage intention or how trust moderates usefulness, attitude, and intention for cloud SCM adoption. This limits the understanding of how cloud services can be leveraged for SCM. This study proposed a theoretical model by integrating the literature of elaboration likelihood model and commitment-trust theory to test of a theoretical model for using the argument advantage and source credibility constructs, with a link to perceived usefulness and attitude toward cloud SCM usage intention. In the integrated model, source creditability and perceived usefulness influence attitude toward cloud SCM usage, with trust moderating usage intention. The results suggest that argument advantage and source creditability positively affect perceived usefulness of cloud services toward attitude and intention and perceived usefulness were found to play a pivotal role, which significantly influenced cloud SCM usage intention.

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