Reusable Services Research Articles

A Causal Relationship among Smart Learning Service Quality, User Satisfaction, and Reuse Intentions: Focusing on the Moderating Roles of Self-efficacy and Flow

A Causal Relationship among Smart Learning Service Quality, User Satisfaction, and Reuse Intentions: Focusing on the Moderating Roles of Self-efficacy and Flow

Decisional factors leading to the reuse of an on-demand ride service

On-demand ride (ODR) services are expanding and becoming more influential globally because of the rapid growth in the use of mobile devices. ODR services are creating new business models and opportunities and reshaping transportation markets. This study used KakaoTaxi, a popular ODR service in Korea, to examine how customers evaluate an ODR service and determine whether customers are willing to reuse such a service. In the first-stage qualitative study, we explored decisional factors by conducting interviews with customers of the ODR service. In the second-stage quantitative study, we interpreted these previously explored decisional factors and developed a research model by applying the customer value theory. Going beyond previous research, the meta-inferences from the qualitative and quantitative studies explain how customers decide to reuse an ODR service. This study also informs ODR service providers of marketing strategies to leverage these key decisional factors in the reuse of an ODR service.

An Aggregation Framework for Digital Humanities Infrastructures: The PARTHENOS Experience

Digital Humanities Infrastructures (DHIs) are research infrastructures supporting researchers in the field of humanities by providing ICT tools and facilities for performing their studies and investigation activities. A DHI typically serves either researchers of one specific sector of humanities (e.g. history, archaeology) or focused research groups working on specific research topics (e.g. studies on the holocaust, on a specific manuscript), with little or no re-use of tools, services and data that could be shared and successfully adopted to answer research questions of different research disciplines. This fragmentation often represents a barrier to inter-disciplinary research collaborations. We present a technical framework for the federation of DHIs where tools, data, services, and knowledge available from each DHI are shared in an integrated environment where researchers can collaborate on specific research topics by creating customized Virtual Research Environments.

Developing A Model for Transforming Government in the Digital Age

This research reviews digital government development at the local level in Australia and proposes a connected digital government model that aims to transform government and to enable local governments migrate to a higher level of digital government. A framework for developing more connected and responsive digital government at the local level is of paramount importance. Connected government requires not only a user-centric focus for the development of digital services but also government business process integration and a whole of government platform. Information integration, and open government data, reusable services and connected IT architecture are essential characteristics of connected digital government. The proposed model links to third party efforts (intermediaries), which provide more effective ways of developing a more connected digital government by potentially breaking down bureaucratic barriers. As digital technology evolves, people are demanding access to government information and services via various digital channels. The proposed model adopts an integrated multichannel service delivery approach to connected digital governments.

Study of Wisdom Campus Overall Architecture Model in Vocational Colleges Based on Service Oriented Architecture

Wisdom campus is a high-level stage of digital campus construction and needs to be improved in addressing the issues of information silos and legacy systems. Based on the SERVICE ORIENTED ARCHITECTURE-based vocational schools wisdom campus overall architecture model contains reusable services and well-defined, standards-compliant interface, through services to achieve different platforms, different languages on the exchange between the system can be targeted at vocational colleges to provide business processes, To provide fast and flexible changes. The model of “platform + application + service” proposed by the model and service-oriented thinking can better solve the problem of information silos and legacy systems and provide an effective method for upgrading the Informatization level of vocational colleges.

IoT Architectural Framework: Connection and Integration Framework for IoT Systems

The proliferation of the Internet of Things (IoT) has since seen a growing interest in architectural design and adaptive frameworks to promote the connection between heterogeneous IoT devices and IoT systems. The most widely favoured software architecture in IoT is the Service Oriented Architecture (SOA), which aims to provide a loosely coupled systems to leverage the use and reuse of IoT services at the middle-ware layer, to minimise system integration problems. However, despite the flexibility offered by SOA, the challenges of integrating, scaling and ensuring resilience in IoT systems persist. One of the key causes of poor integration in IoT systems is the lack of an intelligent, connection-aware framework to support interaction in IoT systems. This paper reviews existing architectural frameworks for integrating IoT devices and identifies the key areas that require further research improvements. The paper concludes by proposing a possible solution based on microservice. The proposed IoT integration framework benefits from an intelligent API layer that employs an external service assembler, service auditor, service monitor and service router component to coordinate service publishing, subscription, decoupling and service combination within the architecture.

Model of Interoperability of Multiple Different Information Systems using SOA Middleware Layer and Ontological Database on the Cloud

The exponential evolution of technology and the environment surrounding the information systems (IS) forces companies to act quickly to follow the trend of business workflows with the use of high computer technologies and well adapted to the needs of the market. Currently, the performance of information system is considered a problem, we must intervene to make them more agile and responsive to better support the strategy of the company. The exchange and communication is a must between information systems to address these issues and new requirements, businesses are looking to integrate and interact even their information systems to interconnect applications. Interoperability is essential between information systems, it promotes alignment between the company’s business strategy and IT strategy while respecting the existing technical heritage of the company. The interoperability solutions between information systems face major problems since the SI is independently developed and designed differently and that solutions must meet certain criteria, namely, autonomy, scalability and resolve trade problems of data. The MDA approach is the most suitable solution to our problem because it ensures a degree of independence between the logic the company’s business and technology platform. Moreover, oriented architecture SOA service is used in this sense, it encapsulates the components of the information system into editable and reusable service. We want through this article to contribute to the development of a model for interoperability of several different IS, founded on a middleware layer compound of services according to the architecture SOA. The special feature of our model is that it uses an ontological database in the Cloud that will store concepts exchanged among interconnected IS and uses several transformation layers, integration, homogenization and adapting services.

New architecture for virtual appliance deployment in the cloud

Cloud computing is a model that offers a convenient access to a set of configurable resources which could be provisioned and released with less administration. The main lock is to assume interoperability and portability between cloud services. We deal with a special type of services called 'virtual appliance'. These services offer pre-packaged applications, preconfigured and encapsulated in virtual machine images running on virtualisation platforms. This type of service enables flexible and easy deployment, while ensuring interoperability, reuse and migration of services. This paper aims to offer architecture to deploy 'virtual appliance' in cloud environment.

New architecture for virtual appliance deployment in the cloud

Cloud computing is a model that offers a convenient access to a set of configurable resources which could be provisioned and released with less administration. The main lock is to assume interoperability and portability between cloud services. We deal with a special type of services called 'virtual appliance'. These services offer pre-packaged applications, preconfigured and encapsulated in virtual machine images running on virtualisation platforms. This type of service enables flexible and easy deployment, while ensuring interoperability, reuse and migration of services. This paper aims to offer architecture to deploy 'virtual appliance' in cloud environment.

An iteration‐based interactive analysis method to design dynamic service‐oriented systems

SummaryService‐oriented paradigm presents numerous new software development patterns and idioms. Software systems are implemented by composing existing third‐party services deployed in the open environment, which is significantly different from traditional software development methodologies in which systems are built through developing modules after system design in a closed environment. Therefore, it is urgent to raise a new design method to adapt to this new circumstance. We concentrate on reusing as many deployed services as possible then introduce a new life cycle model named Taiji model to illustrate this development process. The iteration‐based interactive analysis method following the model is proposed to design service‐oriented systems based on the view of extracting non‐creative activities from a creative activity through defining new notations or applying new rules. The method includes the interactive analysis process that analyzes requirements with deployed services in a local point of view and the iterative analysis process that redesigns system with new knowledge in a global perspective. Meanwhile, the reusable service threshold value is defined to build the uncertain candidate service set (UCSS) of each module in analysis process. The reliability and flexibility of systems can be improved through the quantitative static structure analysis on the basis of the UCSS of systems. Meanwhile, a practical dynamic service binding method that selects services according to actual states of invoking them is presented on the basis of the UCSS containing them. Finally, we also give a case study to illustrate the feasibility of this method. Copyright © 2017 John Wiley & Sons, Ltd.

Multi-cloud service composition using Formal Concept Analysis

Formal Concept Analysis is adapted to the multi-cloud service composition problem.Multi-cloud environment is modelled using lattice theory.Algorithms for optimal cloud combination are proposed.Experiments proved the ability of FCA to reduce the number of clouds and inter-cloud communication cost. Recent years have witnessed a rapid growth in exploiting Cloud environments to deliver various types of resources as services. To improve the efficiency of software development, service reuse and composition is viewed as a powerful means. However, effectively composing services from multiple clouds has not been solved yet. Indeed, existing solutions assume that the services participating to a composition come from a single cloud. This approach is unrealistic since the other existing clouds may host more suitable services. In order to deliver high quality service compositions, the user request must be checked against the services in the multi-cloud environment (MCE) or at least clouds in the availability zone of the user. In this paper, we propose a multi-cloud service composition (MCSC) approach based on Formal Concept Analysis (FCA). We use FCA to represent and combine information of multiple clouds. FCA is based on the concept lattice which is a powerful mean to classify clouds and services information. We first model the multi-cloud environment as a set of formal contexts. Then, we extract and combine candidate clouds from formal concepts. Finally, the optimal cloud combination is selected and the MCSC is transformed into a classical service composition problem. Conducted experiments proved the effectiveness and the ability of FCA based method to regroup and find cloud combinations with a minimal number of clouds and a low communication cost. Also, the comparison with two well-known combinatorial optimization approaches showed that the adopted top-down strategy allowed to rapidly select services hosted on the same and closest clouds, which directly reduced the inter-cloud communication cost, compared to existing approaches.

He Influence of Loyalty Program's Value on Service Reuse Intention

최근 이동통신 서비스 시장이 포화되어 감에 따라 기업은 기존 고객과 관계를 맺고 지속적으로 보상을 제공하는 로열티 프로그램을 통하여 기존 고객의 충성도를 높여 고객이탈을 방지하고 고객유지를 달성하고자 한다. 이에 많은 연구들이 로열티 프로그램에 대한 만족이 서비스 재이용의도에 미치는 영향을 검증하고 있다. 본 연구는 한 단계 나아가, 로열티 프로그램의 효과를 로열티 프로그램 만족과 서비스 만족으로 구분하고 로열티 프로그램에 대한 만족이 서비스 만족에 영향을 미치는지 그리고 궁극적으로 서비스 재이용의도에 영향을 미치는지를 규명하고자 한다. 이를 위해 로열티 프로그램의 효과를 경제적 가치와 심리적 가치로 구분하였다. 실증분석 결과, 경제적 가치와 심리적 가치는 로열티 프로그램 만족과 서비스 만족 모두에 긍정적인 영향을 미치는 것으로 나타났다. 그리고 로열티 프로그램 만족은 서비스 만족도에도 정의 영향을 미치는 것으로 나타났다. 마지막으로 로열티 프로그램 만족도 및 서비스 만족은 서비스 재이용의도에 유의한 영향을 미치는 것으로 나타났다. 최근 무분별한 로열티 프로그램의 사용으로 인해 그 효과에 의문을 제기하는 연구들이 등장하고 있지만, 본 연구결과를 볼 때, 로열티 프로그램은 여전히 서비스 만족과 재이용의도에 영향을 주는 중요한 마케팅 요소임을 알 수 있다. 따라서 기업은 고객이 장기적으로 이용할 수 있는 방향으로 로열티 프로그램을 설계하고 타겟층의 특성에 따른 맞춤형 가치 제공에 초점을 둬야 할 것이다.As the market for mobile communication services becomes more saturated, competition intensifies, and mobile telecom companies are focusing on strengthening their relationship with existing customers rather than attracting new customers that are costly. The purpose of this study is to classify the effects of loyalty programs into loyalty program satisfaction and service satisfaction, and to investigate whether the satisfaction of loyalty program affects service satisfaction and ultimately service reuse intention. Empirical results show that economic value and psychological value have a positive effect on both loyalty program satisfaction and service satisfaction. And satisfaction of loyalty program has a positive effect on service satisfaction. Finally, satisfaction and service satisfaction of loyalty program have significant influence on reuse intention of service. Recently, studies have been emerging that question the effect of using indiscreet loyalty programs. However, this study shows that the loyalty program is still an important marketing factor affecting service satisfaction and reuse intention of service.

A Semantic-aware Framework for Service Definition and Discovery in the Internet of Things Using CoAP

The future of machine-to-machine (M2M) communications relies on reusability, scalability, and interoperability of services. Internet of Things (IoT) aims to provide an environment where smart devices can easily expose their services, while providing accurate service discovery functionality for clients to consume them. Semantic-first approaches and service annotation techniques have already been studied in the service definition context and most of them leverage WSDL or RESTFul services. However, IoT environments, due to their heterogeneous nature and often constrained resources, demand a more flexible and scalable approach. In this paper, semantic annotation of services is supported through ontologies defined for API definition languages such as Swagger and RAML. We leverage the CoAP protocol and linked-data serialization format (JSON-LD) to represent services, entities, and properties in a semantic-aware framework. This enables intelligent discovery of services. A case study on reducing energy consumption in data centers is used to demonstrate the effectiveness of our proposed framework.

A Lightweight Approach for Specification and Detection of SOAP Anti-Patterns

Web-services have become a governing technology for Service Oriented Architectures due to reusability of services and their dependence on other services. The evolution in service based systems demands frequent changes to provide quality of service to customers. It is realised by different researchers that evolution in service based systems may degrade design and quality of service and may generate poor solutions known as anti-patterns. The detection of anti-patterns from web services is an important research realm and it is continuously getting the attention of researchers. There are a number of techniques and tools presented for detection of anti-patterns from object oriented software applications but only few approaches are presented for detection of anti-patterns from SOA. The state of the art anti-pattern detection approaches presented for detection of anti-patterns from SOA are not flexible enough and they are limited to detection of only a few anti-patterns. We present a flexible approach supplemented with a tool support to detect 10 anti-patterns from different SOA-based applications. We compare results of our approach with two representative state of the art approaches.

Process-oriented design of software systems as a system service

Now, it is time to move to a new programming paradigm, not associated with objects and with business processes and their components-business functions. The main idea is to build an application by discovering and using services, available on the network, to perform a certain task. This approach does not depend on specific programming languages and operating systems, and involves the use of service-oriented architecture (SOA) applications, built on the basis of formalized business processes whose functions are represented in the form of reusable services with transparently described interfaces. The article discusses the development of systems of services for the implementation of business processes via a process-oriented business model and features of ontologies of relevant subject areas.

Investigating Structural Relationships among Service Quality, Relationship Quality, Re-use Intention, and Recommendation Intention - A Focus on Customers in the Healthcare Industry -

Investigating Structural Relationships among Service Quality, Relationship Quality, Re-use Intention, and Recommendation Intention - A Focus on Customers in the Healthcare Industry -

Services-based Integration of Urbanized Information Systems

Information systems urbanization has been proposed by many academics and practitioners to facilitate building agile information systems needed by modern organizations to take into account continuous change and overcoming problems induced by external pressures. Nevertheless, as stressed by many authors, integration of urbanized information systems is among the most important challenges faced by organizations. Indeed, urbanized information systems of modern organizations are composed of an important number of applications available for almost every business domain which behave as islands of processing systems either within organizations or across organizations boundaries. Accordingly, they involve high costs and long time to provide consistent information needed by organizations. The integration of an urbanized information system consists in the governance of the relationships between its components (applications, software systems layers, components, etc.). Starting from the 5+1 architecture model of urbanized applications, there are three categories of information systems integration: data-based integration, process-based integration, and service-based integration. In this paper, the authors focus on the third category and analyze the contribution of services to urbanized information systems integration. In particular, they demonstrate that the dependencies between applications belonging to an urbanized information system are based on exchanges of reusable public applicative services. Moreover, they highlight the role played by such services in the integration of urbanized information systems and underline that the effectiveness of reusable public services as instruments of information system integration requires the governance of these services.

부동산 시장 O2O(Online to Offline) 앱서비스의 만족도 및 재이용에 관한 연구

본 연구는 최근 급성장하는 O2O 비즈니스 모델 중 부동산 모바일 중개업체의 사업모델을 분석하고, 사용경험이 있는 사용자를 대상으로 한 재이용의사를 조사하여 사용자의 만족도와 재이용과의 관계를 분석하였다. 연구결과 부동산중개 앱서비스 사용의 용이성과 유용성은 고객만족에 양의 영향을 주며, 이는 재이용에 긍정적인 영향을 미치고 있는 것으로 분석되었다. 또한 부동산중개 앱서비스에서 연결한 오프라인 중개사무실 사용의 용이성과 유용성도 고객만족에 양의 영향을 주고 있으며, 이 역시 재이용에 긍정적인 영향을 미치는 것으로 나타났다. 본 연구에서는 앱서비스 및 중개업소이용 모두에서 용이성보다 유용성이 고객만족에 더 큰 영향력을 가지는 것으로 분석되었는데, 이는 이용자특성이 주택임차라는 이용목적이 뚜렷한 점에서 유용성의 가치가 이용성보다 더 크다는 것을 보여준다. 따라서 부동산 중개서비스 O2O 시장의 지속적인 성장을 위해서는 이용자의 유용성을 높이는 전략이 필요하다.

Towards a knowledge base to support geoprocessing workflow development

ABSTRACTThe spatial analysis functionalities of geographic information systems (GIS) are increasingly used across the web. Interface specifications of geoprocessing web services define the syntactic properties of the services (number and type of parameters) and provide textual descriptions of the operations. The discovery and reuse of web services based on these syntactic properties is restricted and has led to the quest for extended operation descriptions. A number of extended operation descriptions have been proposed and are reviewed in this article. The reviewed descriptions focus on particular steps of the workflow development process. In this article we analyse all phases of the development process of a spatial analysis workflow regarding the requirements of operation descriptions. These requirements are translated into a knowledge base that contains information about spatial analysis operations for the operations’ discovery, selection and composition. The knowledge base also foresees the automated discovery of operations in well-defined application contexts such as the transformation of data types or coordinate reference systems. The knowledge base combines the geooperator approach with elements of ontology-based approaches. The geooperator browser is the implementation of the discovery and selection of geoprocessing operations based on the knowledge base. A draft formalization of the knowledge base demonstrates its use and the support it provides during the composition of operations.

The Relationship among Logistics Service Quality, Customer satisfaction, and Reuse Intention of Internet Shopping Malls: Focused on the Chinese shopping experiences in Korea

The Relationship among Logistics Service Quality, Customer satisfaction, and Reuse Intention of Internet Shopping Malls: Focused on the Chinese shopping experiences in Korea