Shing-Han Li

Identifying the signs of fraudulent accounts using data mining techniques

This survey paper categorises, compares, and summarises from almost all published technical and review articles in automated fraud detection within the last 10 years. It defines the professional fraudster, formalises the main types and subtypes of known fraud, and presents the nature of data evidence collected within affected industries. Within the business context of mining the data to achieve higher cost savings, this research presents methods and techniques together with their problems. Compared to all related reviews on fraud detection, this survey covers much more technical articles and is the only one, to the best of our knowledge, which proposes alternative data and solutions from related domains.

Assessing risk in ERP projects: identify and prioritize the factors

Various figures have stated that ERP (enterprise resource planning) systems have become one of the largest IT investments in recent years. The implementation of ERP system, however, is not an easy task. Previous research reports unusually high failure in ERP projects, sometimes jeopardizing the core operation of the implementing organization. The most famous case is FoxMeyer filed for Chapter 11 bankruptcy protection. Further, ERP systems appear to present unique ongoing risks due to its uniqueness. In this study, we used a Delphi method to identify potential ERP projects risk factors, and constructed an AHP‐based framework to analyze and then prioritized the ERP projects risk factors. The result reveals that some important risk factors deserve more attention during the implementation of ERP projects.

Migrating Legacy Information Systems to Web Services Architecture

Web services-based systems with Service-Oriented Architecture (SOA) are widely accepted as one of the possible solutions for an enterprise information system to retain/keep its old legacy systems. Using this aforementioned architecture, enterprise information systems tend to be more flexible and agile to fit into the capricious business environment, and thus, will be easier to be integrated with other additional applications. The purpose of this manuscript is to propose a migrating solution to convert the architecture of the legacy system into SOA with a systematic approach. This proposed methodology is different from other traditional object-oriented approaches, which migrates the system to have a services-oriented focus without incorporating general objected-oriented (OO) or functional oriented feature. In this study, a case study and information capacity theory were employed to verify/validate that this approach is indeed an effective and a practicable one.

Design and Implementation of a Telecare Information Platform

For the aging population and for people with dominant chronic diseases, countries all over the world are promoting an “Aging in Place” program with its primary focus on the implementation of telecare. In 2009, Taiwan held a “Health Care Value-Added Platinum Program” with the goal of promoting the development of “Telecare” services by integrating medical treatment, healthcare, information communication, medical equipments and materials and by linking related cross-discipline professions to enable people to familiarize themselves with preventive healthcare services offered in their household and community environments. In addition, this program can be utilized to effectively provide diversified healthcare service benefitting society as a whole. This study aims to promote a diversified telecare service network in Taiwan’s household and community environments, establish telecare information platforms, build an internal network of various healthcare service modes, standardize externally interfacing telecare information networks, effectively utilize related healthcare service resources, and complete reasonable service resource links forming an up-to-date health information exchange network. To this end, the telecare information platform based on service oriented architecture (SOA) is designed to promote an open telecare information interface and sharing environment to assist in such tasks as developing healthcare information exchange services, integrating service resources among various different healthcare service modes, accessing externally complex community affairs information, supporting remote physiological information transmissions, and providing diversified remote innovative services. Information system architecture and system monitoring indices of various types of healthcare service modes are used for system integrations for future development and/or expansions.

Understanding the Mediating Effects of Relationship Quality on Technology Acceptance: An Empirical Study of E-Appointment System

This study extends the Technology Acceptance Model (TAM) by incorporating relationship quality as a mediator to construct a comprehensive framework for understanding the influence on continuance intention in the hospital e-appointment system. A survey of 334 Taiwanese citizens who were contacted via phone or the Internet and Structural Equation Modeling (SEM) is used for path analysis and hypothesis tests. The study shows that perceived ease of use (PEOU) and perceived usefulness (PU) have significant influence on continuance intention through the mediation of relationship quality, consisting of satisfaction and trust. The direct impact of relationship quality on continuance intention is also significant. The analytical results reveal that the relationship between the hospital, patients and e-appointment users can be improved via enhancing the continued usage of e-appointment. This paper also proposes a general model to synthesize the essence of PEOU, PU, and relationship quality for explaining users’ continuous intention of e-appointment.

Enhancing conflict detecting mechanism for Web Services composition: A business process flow model transformation approach

Businesses today are keenly aware of the competitive role of information technology. However, there is still a need for application systems to be implemented for support of daily business operations. However, these systems may be developed or acquired at different times from different vendors, and thus may be incompatible with each other. Because of this, a number of standards and technologies have been addressed to draw an integral vision in the field of enterprise application integration (EAI). Emerging Web Services has now promised enterprises that they can deploy new digital services faster than ever before by integrating the existing application systems. By integrating in this fashion, operational processes of heterogeneous systems are seamlessly controlled and integrated through a meta-processes. This integration could preserve the autonomy of original systems, as well as enhance the flexibility and agility of the business. The researchers who constructed this study have attempted to explore in detail the design of these meta-processes. Also the researchers have proposed a conflict detecting mechanism (CDM) in order to aid process designers. A prototype with a case study has been developed to evaluate the feasibility of the CDM, and the results show that it is useful in guiding process designers to correct and improve their designed meta-processes.

Improving the efficiency of IT help-desk service by Six Sigma management methodology (DMAIC) – a case study of C company

Six Sigma concept depicts a ‘Triangle Relationship’ that integrates three attributes such as customer quality, science manners and team work. By employing this concept with the required survey and data collection to carry out the continuous improvement, a company can truly take advantage of the minimum set of operational variables and the lowest cost procedures, and hence, result in an increasing competitive value for/to the company. This research is conducted based on the Six Sigma methodology, DMAIC (definition, measurement, analysis, improvement and control) principle, and it deals with project-related issues to improve the efficiency of information technology (IT) help-desk service through an eHelp-desk system. It is the authors’ belief that the use of eHelp-desk system can help case company to improve its service quality and efficiency. In addition, managerial implications and research limitations are discussed at the end of this article.

Enterprise Application System Reengineering: A Business Component Approach

Due to the rapid changes in information technology (IT), the life cycle to develop an information system has become significantly shorter. Furthermore, companies worldwide have invested much time and effort in developing their existing enterprise application systems in order to maintain their own competitive advantages. Specifically, they are facing a similar problem of preserving the investment. Information system reengineering technology (ISRT) is one way to solve this problem. However, most of the systems reengineered by using traditional ISRT may lack flexibility and reusability and also have some quality concerns. The component-based software engineering can provide some remedy by providing a flexible and reusable enterprise application system. Many companies could benefit from thinking more in terms of building their own business components for their information system areas. This article considers a reengineering approach in order to migrate legacy systems to component-based information systems with a quality control mechanism. Companies can build their own business component libraries in the reengineering process. One additional benefit is to build information systems from business components rather than reinventing the wheel in the future. This study proposed a system architecture and also implemented the prototype system to validate that our mechanism is technically practical. Additionally, we used an example to evaluate that our approach is effective and practicable in the real world.

Semantic-based transaction model for web service

Cloud computing technology has become more and more utilized in business application in today’s industrial fields. In general, many business systems developed based on web services are indeed heterogeneous software systems that process business data by complying with integrated business rules. Web services have until recently been regarded as software building blocks that can be assembled to construct the distributed business applications of the next generation and assist enterprises to promote operational efficiency and organizational flexibility. As a result, Web services can be employed to improve the integration of value chain processes and/or activities. However, Web services are usually implicit as a black box that prohibits users and developers from comprehending an actual scenario and present status inside the web service component as said developers deal with other associated heterogeneous components. Additionally, developers are unable to increase overall efficiency while integrating Web service components if they do not possess the ability to modify/improve the implementation scenario. This research first defines the component as corresponding state transitions that should be decomposed further into sub-transactions and semantic transactions, which can make possible re-implementation of the specific Web services in an efficient way and increase the overall throughputs for the new composite Web services. Secondly, this study implements an MTNet Project, which can be employed to assist developers’ analysis and construction of the semantic models for Web services according to the previously described definitions. Last, the simulation experiment provided in this manuscript proved that the proposed semantic model can indeed improve the throughput and, consequently, decrease the delay time for concurrent transactions.

Developing an Active Emergency Medical Service System Based on WiMAX Technology

The population structure has changed with the aging of population. In the present, elders account for 10.63% of the domestic population and the percentage is still gradually climbing. In other words, the demand for emergency services among elders in home environment is expected to grow in the future. In order to improve the efficiency and quality of emergency care, information technology should be effectively utilized to integrate medical systems and facilities, strengthen human-centered operation designs, and maximize the overall performance. The improvement in the quality and survival rate of emergency care is an important basis for better life and health of all people. Through integrated application of medical information systems and information communication technology, this study proposes a WiMAX-based emergency care system addressing the public demands for convenience, speed, safety, and human-centered operation of emergency care. This system consists of a healthcare service center, emergency medical service hospitals, and emergency ambulances. Using the wireless transmission capability of WiMAX, patients’ physiological data can be transmitted from medical measurement facilities to the emergency room and emergency room doctors can provide immediate online instructions on emergency treatment via video and audio transmission. WiMAX technology enables the establishment of active emergency medical services.