Huei-Huang Chen

Reinventing Healthcare Service through M-care Business Model: The Strategy Analysis of WiMAX Adoption

To address the emerging issues of aging society, new technology creates many opportunities to solve the problem of care service and increases added-value in the digital family. Therefore, this paper analyzes the characteristics of WiMAX wireless technology and its applications in healthcare service. To investigate the local users’ demand of wireless service, this research conducted a questionnaire survey in Hualien County, Taiwan. The findings from the analysis of the 230 returned sample data demonstrate that the new applications and service provided through WiMAX wireless technology is highly appreciated by the people. Based on these findings from surveys and indepth interviews conducted in the local area, this paper proposes a strategy map for the development of the M-care (Mobile care) service through a five-force analysis of the industrial value chain and a SWOT analysis of wireless healthcare delivery in order to provide advice to WiMAX venders on how to create new business for M-service provision.

Combining relational and network retrieval methods

New methods for retrieving records from a database with links are given so that records are retrieved only once and not multiple times as happens when using the traditional method of retrieval Improvements as great as 50 percent are expected for queries over databases containing only many-to-one relationships and much greater improvements are expected when many-to-many relationships are embedded in the database Furthermore, it is shown how to combine relational and network retrieval methods Relations, containing many tuples, are created during the evaluation of a network query Each relation is either joined with other relations or is used to continue the evaluation of the network query The methods given show how to optimize data retrieval from a relational database that is implemented using links, where each link represents a many-to-one relationship

The empirical study of customer satisfaction and continued behavioural intention towards self-service banking: technology readiness as an antecedent

Self-Service Banking (SSB) is one instance of the Self-Service Technologies (SSTs) in e-banking. This study examines consumer satisfaction and the long-term usage intention of SSB. In the proposed model, four dimensions of Technology Readiness (TR) (including optimism, innovativeness, discomfort and insecurity) influence a consumers continuance intention through the mediation of satisfaction. The research model was evaluated using web-based survey data collected from 388 users about their perceptions of SSB. Overall, the results revealed that the effects of optimism and innovativeness are very important, but that discomfort and insecurity do not influence an individuals satisfaction and behavioural intention towards the continued use of SSB. The implications of this study are also discussed.

A Motivational Analysis of the ARCS Model for Information Literacy Courses in a Blended Learning Environment

Abstract This study proposes an attention, Relevance, confidence, satisfaction (ARCS)-based research model that uses a set of ARCS-oriented certified digital general education information literacy (IL) materials for higher education initiated by the Ministry of Education (MoE) in Taiwan, to determine the motivation for learning in a blended learning environment. The research model is tested using an online questionnaire survey of 292 participants. Confirmatory factor analysis (CFA) is used to evaluate the reliability and validity of the results. The partial least squares (PLS) method is used to validate the measurement and hypotheses. Brief comments and in-depth interviews with students who had scored very highly and very poorly in terms of their overall academic performance provided qualitative data on students’ learning motivation. The findings support the validity of the four motivational elements in the ARCS model. The quantitative and qualitative research results demonstrate that the motivation for taking IL courses, whether as a requirement or out of interest, is not a key factor in learning motivation. The results reveal that the ARCS-based digital materials, ARCS-based motivational course design for learning, and the student-centred, inquiring learning environment are critical components for achieving effective online IL courses and favourable learning outcomes.

The study of knowledge management capability and organizational effectiveness in Taiwanese public utility: the mediator role of organizational commitment.

Many studies on the significance of knowledge management (KM) in the business world have been performed in recent years. Public sector KM is a research area of growing importance. Findings show that few authors specialize in the field and there are several obstacles to developing a cohesive body of literature. In order to examine their effect of the knowledge management capability [which consists of knowledge infrastructure capability (KIC) and knowledge process capability (KPC)] and organizational effectiveness (OE), this study conducted structural equation modeling to test the hypotheses with 302 questionnaires of Taipei Water Department staffs in Taiwan. In exploring the model developed in this study, the findings show that there exists a significant relationship between KPC and OE, while KIC and OE are insignificant. These results are different from earlier findings in the literature. Furthermore, this research proposed organizational commitment (OC) as the mediator role. The findings suggest that only OC has significant mediating effects between KPC and OE, whereas this is not the case for KIC and OE. It is noteworthy that the above findings inspired managers, in addition to construct the knowledge infrastructure more than focus on social media tools on the Internet, which engage knowledge workers in “peer-to-peer” knowledge sharing across organizational and company boundaries. The results are likely to help organizations (particularly public utilities) sharpen their knowledge management strategies. Academic and practical implications were drawn based on the findings.

The development and performance evaluation of a Continuous Auditing Assistance System

This study proposes a Continuous Auditing Assistance System (CAAS), which can assist auditors to assess potential weaknesses in the information systems. Auditors can perform auditing tasks independently, give feedback immediately on the extraordinariness and reach the objectives of continuous auditing. A prototype system is implemented to demonstrate the feasibility of this study. Sixty practitioners participated in the study to examine the utility of the system. The results indicate that this CAAS can benefit auditors in detecting potential internal control weaknesses and the weakness in the information systems more effectively and more efficiently.

Performance analysis for a join processor

An architecture which not only elliminates cross referencing but also maintains ordering reservation (suitable for non-equijoin operation) is proposed. The techniques such as parallel processing and pipelining are applied to greatly enhance the system performance. Response time is derived, by comparing the speed of hardware modules, and analyzed for the efficient evaluation of the join operation on the system architecture.

Parallel merging of lists in database management system

Abstract This paper presents a novel parallel merge element (PME), which permits not only more than one key of both input runs compared concurrently, but also all the confirmed keys to be retrieved at one time, which enhances the throughput of hardware merger. The PMEs can be combined to build a merge module in which some hardware queues are placed for maintaining the high throughput. To estimate the merge parallelism of the merge module, a procedure is introduced and its running results are also described. The proposed merge module can be used as a passive high speed module to match the data processing rate of other parallel hardware modules, such as parallel sorter and data filters, in the backend computer or database machine.

Efficient Storage and Retrieval of XML Documents Using XQuery

XML has already been the standard of data interchange on the Internet. Nowadays, a large amount of data is represented in XML format. However, most of the critical data in businesses are still stored in relational database management systems. It is difficult to query XML databases because of its textual format. This research intends to tackle this problem, and we proposed a system to manage XML documents that could be queried by the query language XQuery. XML documents are stored in relational format and the XQuery expressions are translated into appropriate SQL queries. The results of the SQL queries are transformed into XML documents. Comparing with LegoDB System, our system reduces processing time to search a relation configuration and proposes a better translating and executing technique which is more efficiently.

Implementing data cubes via subcubes

OLAP queries are complex and time-consuming and hence the data cube materialization is a commonly used technique to reduce response time. To the best of our knowledge, most of previous OLAP cube implementation techniques apply a static view selection algorithm on the search lattice. This static method first treats each node in the lattice as an undividable unit and then picks some of them for materialization. Pre-computing some nodes without being aware of which nodes are actually accessed at run time would seriously impact both response time and available space. We propose to further partition a node in the lattice into subcubes into each of which multiple OLAP queries via a dynamic materialization algorithm can be mapped. The results of OLAP queries are generally enlarged to subcubes to take potential locality effects into consideration. Experiments show that our dynamic method retains a reasonable performance even though the available space is very limited and is practical for OLAP query processing.