近年來，企業資源規劃系統（Enterprise Resource Planning system, ERP）已經普遍成為中、大型企業整合企業內部各功能單位與企業資源最受歡迎的工具，中小企業在資金允許情況下也會倒入ERP協助企業管理，然而ERP的導入雖帶來許多企業效益，但也常常伴隨著組織變革、員工抗拒和企業流程衝突等問題與挑戰。 對於資源不足、大多數缺乏專業資訊人員的中小企業來說，ERP的導入更是一大挑戰，中小企業組織不若大企業嚴謹，在營運流程上也不見得有一定規範，因此導入ERP系統時，往往需要從現有流程的檢視開始，故本研究探討企業流程再造在中小企業導入ERP系統的過程中扮演的角色及效益，希冀給予未來有意導入或升級ERP系統的中小企業、協助中小企業導入ERP系統的顧問建議。 本研究以個案研究方式為主，選擇電子零組件組裝業中的台灣製造商為個案公司，經由訪談顧問公司主管及個案公司專案負責人，瞭解個案公司ERP系統導入的原因、導入過程的困難與挑戰以及過程中組織、流程的改變。 本研究主要的研究議題如下： 一、從文獻及案例中，蒐集實證資料驗證ERP系統的導入過程有助進行企業流程再造 二、透過個案公司訪談，蒐集實證資料驗證ERP系統有助於企業成長 三、ERP系統商產品選擇及導入流程對於ERP實施成效的影響 / Enterprise Resource Planning system, ERP, has become the most popular system to integrate information between function units in large and medium-sizes enterprises recently. In order to help management, small and medium enterprises may implement ERP when its business is adequately financed. Though enterprises can gain benefits from implementation of ERP, it still comes along with organization change, employee resistance and conflicts of business processes. The implementation of ERP may be a big challenge to small and medium enterprises for those who lack of resources or IT expertise. The structure of small and medium enterprises is not as organized as large enterprises, and even do not have a clear standard operation procedure. Therefore, an inspection of current process is needed in the beginning of ERP implementation. This study focuses on the role that implementation of ERP take and the benefits that small and medium enterprises gain from it, hoping to give advises to those who want to implement or upgrade its ERP system and ERP consultants. It is a case study on Electronic Assembly Company in Taiwan, focusing on the reason of ERP implementation, processes, organization changes and challenges in the implementation of ERP. The main findings are below: 1. Collating data to prove that the implementation of ERP will help to conduct Business Process Reengineering 2. The implementation of ERP will help business growth 3. The process of ERP implementation will influence the effectiveness of ERP

published_or_final_version / Public Administration / Master / Master of Public Administration

Atlikta duomenų integravimo procesų, metodų bei DI technologijų ir įrankių analizė siekiant rasti labiausiai tinkamą variantą įmonei. Išnagrinėti MS SQL 2005 Server SSIS paslauga, Oracle ir įmonėje veikusi MS SQL 2000 Server DTS funkcija. Duomenų integravimo įrankiai paremti ETL platforma. Tai procesai, leidžiantys kompanijoms perkelti duomenis iš įvairių šaltinių, pakeisti formatą ir įkelti juos į kitas duomenų bazes, duomenų centrus, nagrinėjimo saugyklas ar į kitas operacines sistemas palaikyti verslo procesus. Įvykdyta GNT įmonės duomenų integravimo sistemos posistemio reinžinerija naujai pasirinkta technologija. Reinžinerija yra egzistuojančios sistemos analizės ir modifikavimo procesas, atliekamas kai norima pertvarkyti sistemą. Pasirinktas informacijos apie produktus duomenų integravimo procesas, sukurtas DTS pagalba. Procesas patobulintas ir perkeltas į naują technologiją. Atlikus įmonėje veikiančių duomenų integravimo procesų analizę, pastebėtas skirtingas duomenų detalumas ir galimybė juos suskirstyti į kategorijas. Gauta informacija apibendrinta šablonu pavidalu, kuris pavadintas „Bendrinių duomenų atskyrimo šablonu“. Eksperimento metu nustatytas proceso pagreitėjimas, panaudojus sukurtą šabloną. Jis sėkmingai taikomas kitiems duomenų integravimo procesams, atliekant reinžinerią. / The research area of thesis covers various data extraction, transfer and integration methods and technologies; the main object of the research is the process of transferring data from remote subsidiaries and integrating it into one central database currently active in JSC “GNT Lietuva”. The goal of this research is to move data integration (DI) processes into a new technological environment and upgrade them without interrupting active daily DI process, ultimately creating a flexible data integration model (pattern), which could be reused in the future. Following tasks were carried out in order to achieve this goal: analysis of reengineering and data integration principles as well as new integration technologies; investigating their adaptability to the current DI processes and their improvement; implementing integration solutions and experimentation to verify the efficiency of new DI processes, and, finally, construction of a flexible integration solution. The final generated solution was formalized as a data integration pattern. Conclusions drawn from the experiment accomplished in JSC “GNT Lietuva” indicate that practical application of the pattern reduced overall duration of the DI process by 45,4%, whilst the additional application of the SSIS technology resulted in duration decrease of 81,99%. The data integration process became more flexible and new data sources can be easily incorporated from now on.

No description available.

Copying a code fragment and reusing it by pasting with or without minor modifications is a common practice in software development for improved productivity. As a result, software systems often have similar segments of code, called software clones or code clones. Due to many reasons, unintentional clones may also appear in the source code without awareness of the developer. Studies report that significant fractions (5% to 50%) of the code in typical software systems are cloned. Although code cloning may increase initial productivity, it may cause fault propagation, inflate the code base and increase maintenance overhead. Thus, it is believed that code clones should be identified and carefully managed. This Ph.D. thesis contributes in clone management with techniques realized into tools and large-scale in-depth analyses of clones to inform clone management in devising effective techniques and strategies. To support proactive clone management, we have developed a clone detector as a plug-in to the Eclipse IDE. For clone detection, we used a hybrid approach that combines the strength of both parser-based and text-based techniques. To capture clones that are similar but not exact duplicates, we adopted a novel approach that applies a suffix-tree-based k-difference hybrid algorithm, borrowed from the area of computational biology. Instead of targeting all clones from the entire code base, our tool aids clone-aware development by allowing focused search for clones of any code fragment of the developer's interest. A good understanding on the code cloning phenomenon is a prerequisite to devise efficient clone management strategies. The second phase of the thesis includes large-scale empirical studies on the characteristics (e.g., proportion, types of similarity, change patterns) of code clones in evolving software systems. Applying statistical techniques, we also made fairly accurate forecast on the proportion of code clones in the future versions of software projects. The outcome of these studies expose useful insights into the characteristics of evolving clones and their management implications. Upon identification of the code clones, their management often necessitates careful refactoring, which is dealt with at the third phase of the thesis. Given a large number of clones, it is difficult to optimally decide what to refactor and what not, especially when there are dependencies among clones and the objective remains the minimization of refactoring efforts and risks while maximizing benefits. In this regard, we developed a novel clone refactoring scheduler that applies a constraint programming approach. We also introduced a novel effort model for the estimation of efforts needed to refactor clones in source code. We evaluated our clone detector, scheduler and effort model through comparative empirical studies and user studies. Finally, based on our experience and in-depth analysis of the present state of the art, we expose avenues for further research and development towards a versatile clone management system that we envision.

隨著資訊策略的轉換，資訊科技在企業中往往有著不同的定位，加上環境與科技的改變，因而衍生出資訊系統轉型的問題。從流程再造的角度，企業在進行資訊系統轉型的規劃時，若不考慮將流程作重新審視，而只是作一般的技術轉換，如此轉型後的資訊系統，或許符合科技的潮流，卻可能無法回應環境變化所帶來的衝擊，亦難以滿足企業真正的需求。 本研究將以流程再造導向，輔以流程分析工具，探討現行系統的作業問題，配合理論的觀點，以及實務的作法，進行衡量項目的設定，作為評估的參考，同時確立在流程改善時，需依循的規範與原則，以尋求可行且具體的改進方針，從而規劃出未來資訊系統的作業流程和處理程序，並進一步地審視比較資訊系統轉型後，各方面可以預見的成效。

Thesis (PhD) - Swinburne University of Technology, 2006. / Submitted for the degree of Doctor of Philosophy, Swinburne University of Technology - 2006. Typescript. Includes bibliographical references (p. 193-207).

Thesis (M.App.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 150-154). Also available in electronic format on the Internet.

Stuttgart, Univ., Studienarb., 2003.

Thesis (Ph.D.)--University of Western Sydney, 2008. / A thesis submitted to the University of Western Sydney, College of Health and Science, School of Computing and Mathematics in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographical references.