「Ubiquitous」象徵一個概念，意思是「神無所不在」。在資訊科技時代，這個字代表藉由各種資訊產品與網路，可以實現資訊無所不在的理想世界。配合u-Taiwan計畫，我國的U化建設主要是以無線感知、RFID為主的技術來進行。 博物館在數位典藏後所產生的文物底片，目前在管理上大部分還是以人工作業為主，除了耗費人力外，也容易有失誤，若能以RFID技術輔助原本的作業流程，不僅在搜尋或是盤點時都能較準確地找到檔案的位置，在底片進出的控管上也能增進底片檔案管理之準確度，並減低查驗錯誤的可能性。 然而在新科技導入時，若是只考慮科技設備功能，忽略了科技設備與流程整合的話，常常會發生資訊科技不符合實際效用，導致效果不彰的情形。因此，本研究目的在於了解U化實際實施後是否能真正發揮效用，整理出一套評估流程績效之方法，以模式化標準BPMN及作業-單位關係表 (Pool-Lane chart) 等分析評估系統導入後的績效，並嘗試使用於個案N博物館的U化RFID系統之效益評估與分析，以個案結果為基礎來探討RFID為主之U化所帶來的效益。 / The word "Ubiquitous" originated from Latin, which means god is omnipresent. By using various high-tech products and Internet, the concept of ubiquitous world could be realized. In coordination with U-Taiwan project, our government decided to construct the U-infrastructure using Wireless Sensor Network (WSN) and Radio-frequency identification (RFID). Furthermore, RFID has been widely adopted in many fields, including access control management, product tracking management, health care application, museum information and file management, active/passive gallery tours (e.g., optimum guide route, product information). Most museum image archive management is done by hand, including preservation, inventory, loaning and return etc. In addition to consume extra manpower, it's also error-prone. While stocktaking or searching, it's more accurate and easier to locate certain product using RFID. Moreover, by using RFID it also promote the performance and enhance the accuracy of image access control management, and reduce the possibility of error occurrence. However, introducing new technology could also cause other issues because of the impractical lead-in plan. Therefore, through case studies, we want to evaluate the performance of ubiquitous information application using RFID, and choose a museum cultural relics image archive management as our target. Our study analyzes the original operating process using module standardized tools to evaluate the difference in performance after the implementation of RFID.

競爭風險之下對邊際分配的估計，是許多領域中常遇到的問題。由於主要事件及次要事件互相競爭，只要一種事件先發生即終止對另一事件的觀察，在兩事件同時發生的機率為0之下，連一筆完整的資料我們都無法蒐集到。除非兩事件互為獨立或加上其它條件，否則會有邊際分配無法識別的問題。但是獨立的條件在有些情況下並不合理，為解決相依競爭風險之邊際分配無法識別的問題，可先假定兩事件發生時間之間的關係。 由於關聯結構定義出兩變數間的結合關係，我們可利用關聯結構解釋兩事件發生時間之間的關係。假定兩變數之相關性參數為已知，且採用機率積分轉換的觀念，本論文討論了Zheng 與 Klein提出的關聯結構-圖形估計量，是否會依設限程度、相關性強度和關聯結構形式的不同，以致估計能力有別。 / The problem of estimating marginal distributions in a competing risks study is often met in scientific fields. Because main event and secondary event compete with each other, and a first occurring event prevents us from observing another event promptly, the intact lifetimes or survival times are unable to be collected in the circumstances that the probability of both lifetimes coinciding is 0. Unless lifetimes being independent or adding other conditions, there is a problem that the marginal distributions are non-identifiable. But the condition of independence is not always reasonable, we may assume the relation between lifetimes has some special form Because the copula defines the association between two variables, it can be employed to explain relation between lifetimes. Assuming that the dependence parameter in the copula framework is known, and adopting the concept of the probability integral transformations, this thesis has demonstrated whether the estimating abilities of the copula-graphic estimator, that Zheng and Klein put forward, are different in rates of censoring, intensities of dependence, and forms of the copula.

自中國在1949年建立起，台灣已面臨激烈的有關於國際地位認同的外交爭論。已有許多研究都在討論中國在拉丁美洲的崛起以及其如何影響台灣。讓拉丁美洲的國家與台灣維持長期穩定的關係的原因是什麼? 本研究分析了美國在冷戰期間與台灣及中美洲對抗共產主義的重要性，這讓我們了解為什麼這些國家依然支持台灣。從研究結果可得知美國的政策主要導向中美洲而不是中國，這也成為維持中華民國與中美洲之間的主要因素。有三個變數皆已被用來說明為什麼中美洲國家承認臺灣是一個國家: 外交政策、 經濟因素和政權類型。透過本研究，我發現了承認台灣地位的問題根源，也同時瞭解美國、中美洲及台灣間的關係。 / Since the establishment of the People’s Republic of China (PRC) in 1949, Taiwan has faced a fierce diplomatic battle against China for international recognition. There have been many studies regarding the growing presence of China in Latin America and how that affects Taiwan. What are the reasons for these countries to maintain this long-standing relationship with Taiwan? This study has covered the Cold War years to analyse the importance of the United States and their battle against Communism for Taiwan-Central America relations and it also allowed us to understand the reasons why they still support Taiwan. The result of the analysis showed us how the U.S. policy towards Central America, but not the growing presence of China, has been the main factor to shape the relations between the ROC and Central American countries. Three variables have been used to explain why Central American countries recognize Taiwan as a state: Foreign policy, economic factors and regime type. Through this study, I came across the roots of the problem with Taiwan’s status and also acquired a better understanding of the dynamic in U.S. – Central America – Taiwan relations.