Service Compatibility Research Articles

Understanding the diffusion and adoption of Bitcoin transaction services: The integrated approach

This study proposes a comprehensive user acceptance model for Bitcoin transaction services, while also statistically presenting how four user-oriented theories (innovation diffusion theory, the benefit-risk concept, the theory of planned behavior, and transaction cost theory) contribute to the understanding of user intent regarding the use of these services. Results from more than 1300 samples suggest that both perceived benefits and service compatibility play notable roles in determining behavioral intent, while perceived risk, cost, and complexity were found to have no significant impact on user adoption. Moreover, both the potential trialability and observability of the services were investigated as weak antecedents of user adoption. On the basis of these results, the resulting managerial and theoretical implications are examined, albeit with notable limitations.

Predictors of the Continued Adoption of WECHAT Mobile Payment

This research article integrates the technology acceptance model and diffusion of innovation theory to explore the factors predicting the continuance intention to use WECHAT mobile payment services in China. The results showed that perceived usefulness, perceived ease of use, perceived service quality, social influence, internet self-efficacy, relative advantage, compatibility, and complexity of were all significant predictor of the continued intention to use WECHAT mobile payment services. However, trust in the internet was not significant determinants of the continued intention to use. The results also demonstrated that internet self-efficacy is a predictor of perceived ease of use, relative advantage, compatibility and complexity of mobile payment services. Again, perceived ease of use and social influence were found to have a significant impact on the perceived service quality of WECHAT mobile payment. The implications of these findings on the adoption of mobile payments are discussed.

Строгая типизация в событийной микросервисной парадигме

Microservice architecture is a popular approach for building various systems. It consists of various dedicated small-sized components from a solid application. Components work together and provide the required business-logic but each one can be implemented with the most suitable technique. Moreover, overloaded parts can be scaled easily. However, data transfer layer does not guarantee compatibility of services during their development. After changing input or output data type of any microservice of the system there are too little ways to keep up compatibility of all other services. The problem is especially urgent for asynchronous communication because existing systems and standards work mostly with synchronous RPC or REST interoperation or cover high-level description of business-logic. One approach to guarantee compatibility of all services in the system is a preliminary check of data types before the services start to work. The previous paper considers realization of the mentioned approach with the dedicated service that checks types, connects services using description of the interfaces. The current paper covers further development of the approach: a system built with preliminary check of data types supports only asynchronous communication and all checks are provided by a message broker. We have implemented and compared simplified approach with alternative ways and have come to the conclusion that described way solves the problem of type inconsistency in a microservice event-driven architecture in a more convenient way than alternatives.

On the Optimal Design of a Bipartite Matching Queueing System

We consider a multi-class multi-server queueing system and study the problem of designing an optimal matching topology (or service compatibility structure) between customer classes and servers under a FCFS-ALIS service discipline. Specifically, we are interested in finding matching topologies that optimize --in a Pareto efficiency-- sense the trade-off between two competing objectives: (i) minimizing customers' waiting time delays and (ii) maximizing matching rewards generated by pairing customers and servers. Our analysis of the problem is divided in three main parts. First, under heavy-traffic conditions, we show that any bipartite matching system can be partitioned into a collection of complete resource pooling (CRP) subsystems, which are interconnected by means of a direct acyclic graph (DAG). We show that this DAG together with the aggregate service capacity on each CRP component fully determine the vector of steady-state waiting times. In particular, we show that the average (scaled) steady-state delay across all customer classes is asymptotically equal to the number of CRP components divided by the total system capacity. Second, since computing matching rewards under a FCFS-ALIS service discipline is computationally infeasible as the number of customer classes and servers grow large, we propose a quadratic programming (QP) formulation to approximate matching rewards. We show that the QP formulation is exact for a number of instances of the problem and provides a very good approximation in general. Extensive numerical experiments show that in over 98% of problem instances the relative error between the exact rewards and the QP approximate rewards is less than 2%. Lastly, combining our characterization of average delays in terms of the number of CRP components and the quadratic programming formulation to compute matching rewards, we propose a mixed-integer linear program (MILP) that can be used to find the set of matching topologies that define the Pareto frontier of reward-delay pairs.

A semantic matching engine for web service composition

One of the main assets of service-orientation is composition, which consists of developing higher-level services by re-using well-known functionality provided by other services in a low-cost and rapid development process. However, considerable differences on structural, semantic and technical levels along with the growing number of available web services makes their discovery a significant challenging task. Therefore, services compatibility is an essential pre-requisite to service composition. Measuring the similarity of services is an important and valuable task to get useful information about their compatibility. Similarity measure can be considered as an optimisation step before composing services since it enables to reduce the search time by functionally classifying similar services. This paper presents a practical approach to measure the similarity of web services. Both semantic and syntactic descriptions are integrated through specific techniques for computing similarity measures between services. Formal concept analysis (FCA) is then used to classify web services into concept lattices, and therefore generate a hierarchy of classes of similar web services. Service clustering is used to narrow down the search space and to enable rapid semantic matching of a service request against a large size pool of services. Following this step, a composition engine takes as inputs the set of similar services and the specification of the required service, and generates the candidate composition plans that realise the goal. To determine the composition plan, the composition is reduced to a planning problem.

A semantic matching engine for web service composition

One of the main assets of service-orientation is composition, which consists of developing higher-level services by re-using well-known functionality provided by other services in a low-cost and rapid development process. However, considerable differences on structural, semantic and technical levels along with the growing number of available web services makes their discovery a significant challenging task. Therefore, services compatibility is an essential pre-requisite to service composition. Measuring the similarity of services is an important and valuable task to get useful information about their compatibility. Similarity measure can be considered as an optimisation step before composing services since it enables to reduce the search time by functionally classifying similar services. This paper presents a practical approach to measure the similarity of web services. Both semantic and syntactic descriptions are integrated through specific techniques for computing similarity measures between services. Formal concept analysis (FCA) is then used to classify web services into concept lattices, and therefore generate a hierarchy of classes of similar web services. Service clustering is used to narrow down the search space and to enable rapid semantic matching of a service request against a large size pool of services. Following this step, a composition engine takes as inputs the set of similar services and the specification of the required service, and generates the candidate composition plans that realise the goal. To determine the composition plan, the composition is reduced to a planning problem.

Mobile Services as a Means to Control: An Empirical Assessment

ABSTRACT Perceived task control is proposed as an important belief and its relationship with use intentions is examined in the context of mobile services. Furthermore, the study examines ubiquity, alertness, personalization, ease of navigation, service compatibility, and device compatibility as features of a mobile service that influence user’s belief about perceived task control. The research model was examined based on data collected from two different user groups. Results based on regression analysis show that perceived task control has a significant influence on use intentions for adopters but not for non-adopters. Ubiquity, service compatibility, and ease of navigation had a significant relationship with perceived task control for the adopter group. While, for the non-adopter group ubiquity, alertness, and ease of navigation were found to be influential. Comparative analysis of the two groups reveals interesting insights. The study offers guidance on engaging existing users and transitioning non-adopters to the mobile space.

Research on a 3D Geological Disaster Monitoring Platform Based on REST Service

Representational state transfer (REST) is a resource-based service architectural style. It abstracts data and services as resources and accesses them through a unique Uniform Resource Identifier (URI). Compared with traditional Simple Object Access Protocol (SOAP) methods, REST is more concise. It takes full advantage of HyperText Transfer Protocol (HTTP) and has better scalability and extensibility. Based on REST services, this article integrates geographic information, real-time disaster monitoring data, and warning services in a three-dimensional (3D) digital Earth infrastructure and establishes a three-dimensional geological disaster monitoring GIS platform with good service compatibility and extensibility. The platform visually displays geographical and geological information and real-time monitoring data in a three-dimensional Earth, accesses warning model services to implement disaster warnings, and realizes comprehensive information management, monitoring, and warnings of multiple types of geological disasters. This can provide decision support for disaster prevention and relief and improve the informatization of geological disaster prevention and control.

Peak-shaving and profit-sharing model by Aggregators in residential buildings with PV– a case study in Eskilstuna, Sweden

Nowadays, solar photovoltaic (PV) system combined with energy storage systems is playing increasing significant role in residential buildings in Sweden. At the same time it brings reliability problems because of the intermittency of electricity production and exceptionally distributed reservoir which is followed by the peak-valley electricity prices and power grid fluctuations. There is an increasing need for new business model and economic paradigm for a third-party/ aggregator to bridge the gap between Power Grid and end-users. Providing the valuable electricity services at scale and breaking regulatory arbitrage, aggregators help to deliver desired levels of residents’ engagements, value-added services and feasible level of unbundling of electricity market. This paper analyzes how the aggregators grab the indisputable business opportunity to interact between residents and Power Grid from the perspective of physical electricity flows and benefits share of peak-shaving. We employ a real case in Eskilstuna in Sweden to design new conceptual business model and validate using data. And the result indicates the compatibility of the aggregator service and its business model. It further sheds light on the pricing model of generated electricity by PV system, and benefits share ratio design.

Standardization in REACH in the context of active and healthy ageing

Standardization is an important instrument to transfer research results and innovative knowledge into the market. It fosters dissemination and the availability of these results even after the end of the research project. Therefore, an overview of activities and planning in terms of standardization in the first year of REACH is provided. Standardization requires attention during the complete life span of a research project. Firstly, a research on existing standards and standardization activities related to the field of innovation has been conducted. Based on this a standardization strategy is envisaged that characterizes the next steps in project related standardization. The field of active and healthy ageing requires related standardization activities to enhance compatibility of innovative products and services. Standardization in REACH is an example for how to include standardization activities in a research project.

From owning to sharing: understanding the emergence of social sharing services

PurposeThe purpose of this paper is to identify the motivational factors that help shape user perceptions of and attitudes toward car-sharing services and develop a research model that integrates these factors with the technology acceptance model to explicate car sharing’s adoption pattern.Design/methodology/approachAn online survey was administered to examine the role of proposed motivational factors for the adoption of wearable healthcare devices. Confirmatory factor analysis and structural equation modeling were conducted on collected data (n=638) to demonstrate the reliability and validity of the measurement and structural model.FindingsPerceived reliability, compatibility, and enjoyment of car-sharing services as well as users’ innovative tendencies are positively associated with usage intention. However, users’ privacy concern and perceived cost of using the services are found to have no significant effects on the adoption of the services.Originality/valueWhile the recent advent of mobile communication devices and services has increased access to social sharing-based platform services such as car sharing, this study provides a research framework that helps to understand how various psychological factors contribute to the adoption of a social-sharing service.

Smart home services as the next mainstream of the ICT industry: determinants of the adoption of smart home services

This study investigated the core motivations for adopting smart home services and explored the approaches and processes through which the motivations were incorporated with the original technology acceptance model (TAM) and the acceptance of the services. To achieve this purpose, an Internet survey was conducted in South Korea. The data (N = 799) from the survey were analyzed using structural equation modeling and confirmatory factor analysis. The results suggested that the perceived compatibility, connectedness, control, system reliability, and enjoyment of smart home services were positively related to the users' intention to use the services, whereas there was a negative association between the perceived cost and usage intention. The structural results also provided evidence of the validity of the original TAM. Although smart home services have attracted users' interest in the housing context, only a few studies have examined how the users' intention to use the services is motivated. The present study represents an initial step to explore the process of adopting smart home services with potential future research areas.

Modeling and Analysis of 3d Printing Ws-Bpel Business Processes Based on Servicenet

To solve the problem that whether the described Web service by business process execution language were interactive compatible, a method of WS-BPEL(Web Services Business Process Execution Language) parsing and execution was proposed. The service compatibility checking algorithm based on the Mediation model, which can provide multi-level service checking compatibility, and realize the goal of Service Cooperation or the demand of Value-Added Services. Based on BPMN specification, a task modeling and management tool was proposed to support the service components for assembly component. It supports both Web service automatic retrieval and service content analysis based on QoS information, and the task execution model between the BPMN specification task descriptions was transformed into the BPEL specification task description model. Finally, a model transformation strategy based on meta-model mapping was put forward. The algorithm was designed and examples were given to demonstrate the efficiency of 3D Printing WS-BPEL.

Evaluation of LTE and Aeronautical Radionavigation Service Electromagnetic Compatibility in 694–790 MHz Frequency Band

In 2012 the 694-790 MHz (700 MHz) band was allocated to the International Telecommunication Union (ITU) Region 1 for mobile service (excluding aeronautical mobile), and was identified to the International Mobile Telecommunications (IMT). However, countries of Region 1 listed in Radio Regulations footnote No. 5.312 will also be able to continue using of these frequencies for their aeronautical radionavigation service (ARNS). This allocation comes into force immediately after the 2015 World Radiocommunication Conference (WRC-15). The objective of this article is to assess the electromagnetic compatibility of aeronautical radionavigation service and mobile service operating in 694 MHz–790 MHz. For interference analysis the Minimum Coupling Loss (MCL) method and Monte Carlo method simulation was used. The obtained results provide the minimum coupling distance required between ARNS and mobile service Long Term Evolution (LTE) stations to maintain the required performance level of the ARNS systems.DOI: http://dx.doi.org/10.5755/j01.eie.22.6.17231

User communication behavior in mobile communication software

Purpose The purpose of this paper is to develop a research model examining users’ perceived needs-technology fit of mobile communication software through motivational needs and technological characteristics. The study investigated the effects of perceived needs-technology fit on user satisfaction and intention to continue using mobile communication software. Design/methodology/approach This study proposes a research model based on task-technology fit theory and uses and gratification theory, incorporating key determinants of users’ continuance intention toward mobile communication software. An online survey instrument was developed to collect data, and 403 questionnaires were used to test the relationships in the proposed model. Findings The causal model was validated using AMOS 21.0, and all nine study hypotheses were supported. The results indicated that users’ perceived needs-technology fit and satisfaction were crucial antecedents of their intention to continue using mobile communication software and that they mediated the influence of users’ needs as well as technological characteristics. Practical implications Mobile communication software practitioners should focus on enhancing users’ perceived needs-technology fit through motivational needs (utilitarian, hedonic, and social needs) and technological characteristics (mobile convenience, service compatibility, and user control) to further boost user satisfaction and intention to continue using mobile communication software services. Originality/value This study contributes to a theoretical understanding of factors explaining users’ continuance intention toward mobile communication software.

Bit Rate Requirements for High Dynamic Range Video

High dynamic range (HDR) video can offer consumers a much improved viewing experience compared to current broadcast video. The dynamic range of current television images, referred to as standard dynamic range (SDR), is governed by cathode ray tube physics first documented about eighty years ago. The standards include the Electro-Optical Transfer Function (EOTF) and the Opto-Electrical Transfer Function (OETF), as defined in International Telecommunications Union Radiocommunication (ITU-R) Recommendations BT.1886 and ITU-R BT.709, respectively. Alternative transfer functions have been defined to support the transmission and rendering of HDR video signals. These transfer functions aim to provide perceptually uniform mapping of video signals to the higher luminance range of HDR displays while maintaining video signal bit depths used across current broadcast infrastructures. In consequence, these new transfer functions exhibit much higher non-linearity compared to the transfer functions used in today's SDR systems. This could lead to several implications, such as an increase in bit rates required to transmit HDR services; changes to the existing broadcast infrastructure, including graphics equipment and vision mixers; and the compatibility of HDR services with existing SDR displays. This paper studies the impact of such transfer functions on the efficiency of the video compression used for delivery to the final user. Results, in terms of compression efficiency and subjective picture quality, using single-layer High Efficiency Video Coding (HEVC, also known as H.265 and MPEG-H Part 2) video compression algorithms are presented. This seeks to answer the question of what bit rates will be required to provide HDR services using existing video compression technology.

Compatibility of municipal services based on service similarity

The aim of this article is to propose and examine a quantitative method of determining the degree of compatibility between municipal services. Provision of services and facilities maintenance are usually two biggest expenditures of local governments. Traditionally, facilities host only one service, whereas the challenge and opportunity lies in combining various, compatible services and offering them together under one roof. Such a combination decreases municipal expenditure and has a strong positive impact on the general service quality. For this purpose, we take advantage of the City-block distance formula to calculate the degree of compatibility between municipal services. The method is examined and discussed on a sample of 30 real municipal services. This allows us to find possible combinations of strongly compatible services that should be offered together in Multi-Service Facilities and, at the same time, avoid an unwanted combination of services that are incompatible.

The Need for Formal Compatibility Analysis in Web Service Choreography via an E-Commerce Application

The formal analysis of Web service compatibility is an important task that is not supported by current composition languages, due to their lack of well-defined formal semantics. This paper addresses the raised issues by providing a survey of service composition with focus on formal compatibility analysis and proposing an e-commerce application that integrates formal methods in Web service choreographies. These methods, including Colored Petri Nets (CPNs) and Timed CPNs, are used at design-time for analyzing service compatibility that will be monitored at run-time. This paper forms an important step towards reliable choreographies since by analyzing at design-time problems could be detected early in the development cycle before starting the implementation. It discusses the monitoring of the compatibility evolution at run-time. The effectiveness of our work is validated using CPN Tools.

Quality and Competition in Retail: An Empirical Investigation

With the tremendous growth in the Indian retail sector, quality in retail has become one of the most pertinent issues. Keeping pace with the competitive environment and dynamic consumer lifestyle, the compatibility of retail services with consumer needs and demands becomes crucial. Relationships with customers need to be prioritised securing the future of retail in India. The retail experimentation with modern retail formats needs to be substantiated with accurate assessment and management of retail quality. The present study strives to assess retailers with the parameters of service quality and relationship quality so as to derive useful insights for bringing out retail efficiencies.

Design theory, modelling and the application for the Internet of Things service

ABSTRACTThe Internet of Things (IoT) makes it possible for us to sense the physical world and locate objects in it using the enabling technologies associated with IoT. Compared with traditional information systems, IoT enabling technologies can help acquire real-time data necessary for managing enterprise business process. An IoT system should have an ability beyond integrating enabling technologies and traditional information systems that are only used to access environmental data. This paper begins with a literature review of IoT-related issues and a discussion of the difference between traditional information service and IoT service. Three principles for IoT service design from the perceptive of service classification, coordination and compatibility are proposed. The paper also proposes a utility model for resource allocation in order to improve IoT service performance, and an application involving a cold chain visibility platform is given to illustrate our research.